Add 21/15 and 28/32
1st number: 1 6/15, 2nd number: 28/32
21/15 + 28/32 is 91/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
21/15 = 21 × 32/15 × 32 = 672/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
28/32 = 28 × 15/32 × 15 = 420/480 - Add the two like fractions:
672/480 + 420/480 = 672 + 420/480 = 1092/480 - 1092/480 simplified gives 91/40
- So, 21/15 + 28/32 = 91/40
In mixed form: 211/40
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