Add 21/7 and 81/32
1st number: 3 0/7, 2nd number: 2 17/32
21/7 + 81/32 is 177/32.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 32 is 224
Next, find the equivalent fraction of both fractional numbers with denominator 224 - For the 1st fraction, since 7 × 32 = 224,
21/7 = 21 × 32/7 × 32 = 672/224 - Likewise, for the 2nd fraction, since 32 × 7 = 224,
81/32 = 81 × 7/32 × 7 = 567/224 - Add the two like fractions:
672/224 + 567/224 = 672 + 567/224 = 1239/224 - 1239/224 simplified gives 177/32
- So, 21/7 + 81/32 = 177/32
In mixed form: 517/32
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