Add 42/21 and 21/64
1st number: 2 0/21, 2nd number: 21/64
42/21 + 21/64 is 149/64.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 64 is 1344
Next, find the equivalent fraction of both fractional numbers with denominator 1344 - For the 1st fraction, since 21 × 64 = 1344,
42/21 = 42 × 64/21 × 64 = 2688/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
21/64 = 21 × 21/64 × 21 = 441/1344 - Add the two like fractions:
2688/1344 + 441/1344 = 2688 + 441/1344 = 3129/1344 - 3129/1344 simplified gives 149/64
- So, 42/21 + 21/64 = 149/64
In mixed form: 221/64
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