Add 12/32 and 42/21, Solve 12/32 + 2 0/21 as a fraction

Add 12/32 and 42/21

1^st number: 12/32, 2^nd number: 2 0/21

12/32 + 42/21 is 19/8.

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

Next, find the equivalent fraction of both fractional numbers with denominator 672
For the 1st fraction, since 32 × 21 = 672,
12/32 = 12 × 21/32 × 21 = 252/672
Likewise, for the 2nd fraction, since 21 × 32 = 672,
42/21 = 42 × 32/21 × 32 = 1344/672
Add the two like fractions:
252/672 + 1344/672 = 252 + 1344/672 = 1596/672
1596/672 simplified gives 19/8
So, 12/32 + 42/21 = 19/8
In mixed form: 23/8

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