Add 15/32 and 80/42, Solve 15/32 + 1 38/42 as a fraction

Add 15/32 and 80/42

1^st number: 15/32, 2^nd number: 1 38/42

15/32 + 80/42 is 1595/672.

Find the least common denominator or LCM of the two denominators:
LCM of 32 and 42 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 32 × 21 = 672,
15/32 = 15 × 21/32 × 21 = 315/672
Likewise, for the 2nd fraction, since 42 × 16 = 672,
80/42 = 80 × 16/42 × 16 = 1280/672
Add the two like fractions:
315/672 + 1280/672 = 315 + 1280/672 = 1595/672
So, 15/32 + 80/42 = 1595/672
In mixed form: 2251/672

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