Question

$\frac{13}{15} - \frac{ - 11}{20}$
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Answer 1

$\frac{13}{15} - \frac{ - 11}{20}$

Let's convert it into like fraction first :-

LCM of denominators 15 & 20

= 2×2×3×5

=60

$\frac{13}{15}$×$\frac{4}{4}$=$\frac{54}{60}$

$\frac{-11}{20}$×$\frac{3}{3}$=$\frac{-33}{60}$

$\frac{54}{60}$-$\frac{-33}{60}$=$\frac{87}{60}$