Question

Multiply 1 3/7 by 2 5/8

Answer 1

$\frac{13}{7} \times \frac{25}{8}$

$\frac{325}{56}$

$5.80357143$

Answer 2

since mixed fraction,
1 3/7= (7×1+3)/7
2 5/8= (8×2+5)/8

Therefore,
(7×1+3)/7 × (8×2+5)/8

10/7 × 21/8=210/56

convert to mixed fraction =

3 42/56= 3+0.75=3.75

Hope this helps