Add 21/7 and 42/32
1st number: 3 0/7, 2nd number: 1 10/32
21/7 + 42/32 is 69/16.
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,
42/32 = 42 × 7/32 × 7 = 294/224 - Add the two like fractions:
672/224 + 294/224 = 672 + 294/224 = 966/224 - 966/224 simplified gives 69/16
- So, 21/7 + 42/32 = 69/16
In mixed form: 45/16
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