Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

c) 
(2)/(3)×(5)/(7)
(2 Marks)
d) 
(3)/(4)÷(21)/(16)
e) 
((3)/(5))^(3)
(2 Marks)
f) 
2(3)/(4)-7(1)/(2)

c) 23×57 \frac{2}{3} \times \frac{5}{7} \newline(22 Marks)\newlined) 34÷2116 \frac{3}{4} \div \frac{21}{16} \newlinee) (35)3 \left(\frac{3}{5}\right)^{3} \newline(22 Marks)\newlinef) 234712 2 \frac{3}{4}-7 \frac{1}{2}

Full solution

Q. c) 23×57 \frac{2}{3} \times \frac{5}{7} \newline(22 Marks)\newlined) 34÷2116 \frac{3}{4} \div \frac{21}{16} \newlinee) (35)3 \left(\frac{3}{5}\right)^{3} \newline(22 Marks)\newlinef) 234712 2 \frac{3}{4}-7 \frac{1}{2}
  1. Multiply fractions: c) Multiply the fractions (23)(\frac{2}{3}) and (57)(\frac{5}{7}).23×57=2×53×7=1021\frac{2}{3} \times \frac{5}{7} = \frac{2\times5}{3\times7} = \frac{10}{21}.
  2. Divide fractions: d) Divide the fractions (34)(\frac{3}{4}) by (2116)(\frac{21}{16}).34÷2116=34×1621=3×164×21=4884\frac{3}{4} \div \frac{21}{16} = \frac{3}{4} \times \frac{16}{21} = \frac{3\times16}{4\times21} = \frac{48}{84}. Simplify 4884\frac{48}{84} by dividing both numerator and denominator by 1212.4884÷1212=47\frac{48}{84} \div \frac{12}{12} = \frac{4}{7}.
  3. Raise to power: e) Raise the fraction (35)(\frac{3}{5}) to the power of 33.(35)3=3353=27125\left(\frac{3}{5}\right)^3 = \frac{3^3}{5^3} = \frac{27}{125}.
  4. Subtract mixed numbers: f) Subtract the mixed numbers 2(34)2\left(\frac{3}{4}\right) and 7(12)7\left(\frac{1}{2}\right).\newlineFirst, convert mixed numbers to improper fractions.\newline2(34)=(84)+(34)=1142\left(\frac{3}{4}\right) = \left(\frac{8}{4}\right) + \left(\frac{3}{4}\right) = \frac{11}{4}.\newline7(12)=(142)+(12)=1527\left(\frac{1}{2}\right) = \left(\frac{14}{2}\right) + \left(\frac{1}{2}\right) = \frac{15}{2}.\newlineNow subtract the improper fractions.\newline(114)(152)=(114)(304)=194\left(\frac{11}{4}\right) - \left(\frac{15}{2}\right) = \left(\frac{11}{4}\right) - \left(\frac{30}{4}\right) = -\frac{19}{4}.\newlineConvert the improper fraction back to a mixed number.\newline194=434-\frac{19}{4} = -4 \frac{3}{4}.

More problems from Sum of finite series starts from 1