Question

a) 2/5 + 3/4

b) 121/9 - 1/9

c) 9 . 7/10

d) 4/15 . 30

Answer 1

a)

$\frac{2}{5} + \frac{3}{4} = \frac{8+ 15}{20} = \frac{23}{20}$

b)

$\frac{121}{9} - \frac{1}{9} = \frac{120}{9} = \frac{40}{3}$

c)

$9 \times \frac{7}{10} = \frac{63}{10}$

d)

$\frac{4}{15} \times 30 = \frac{120}{15} = \frac{40}{5}$