Add 40/42 and 21/96, Solve 40/42 + 21/96 as a fraction

Add 40/42 and 21/96

40/42 + 21/96 is 787/672.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 96 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 42 × 16 = 672,
40/42 = 40 × 16/42 × 16 = 640/672
Likewise, for the 2nd fraction, since 96 × 7 = 672,
21/96 = 21 × 7/96 × 7 = 147/672
Add the two like fractions:
640/672 + 147/672 = 640 + 147/672 = 787/672
So, 40/42 + 21/96 = 787/672
In mixed form: 1115/672

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