Add 3/21 and 21/64
3/21 + 21/64 is 211/448.
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,
3/21 = 3 × 64/21 × 64 = 192/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
21/64 = 21 × 21/64 × 21 = 441/1344 - Add the two like fractions:
192/1344 + 441/1344 = 192 + 441/1344 = 633/1344 - 633/1344 simplified gives 211/448
- So, 3/21 + 21/64 = 211/448
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