Add 80/21 and 7/32, Solve 3 17/21 + 7/32 as a fraction

Add 80/21 and 7/32

1^st number: 3 17/21, 2^nd number: 7/32

80/21 + 7/32 is 2707/672.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 32 is 672

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 21 × 32 = 672,
80/21 = 80 × 32/21 × 32 = 2560/672
Likewise, for the 2nd fraction, since 32 × 21 = 672,
7/32 = 7 × 21/32 × 21 = 147/672
Add the two like fractions:
2560/672 + 147/672 = 2560 + 147/672 = 2707/672
So, 80/21 + 7/32 = 2707/672
In mixed form: 419/672

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