Add 8/21 and 70/64
1st number: 8/21, 2nd number: 1 6/64
8/21 + 70/64 is 991/672.
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,
8/21 = 8 × 64/21 × 64 = 512/1344 - Likewise, for the 2nd fraction, since 64 × 21 = 1344,
70/64 = 70 × 21/64 × 21 = 1470/1344 - Add the two like fractions:
512/1344 + 1470/1344 = 512 + 1470/1344 = 1982/1344 - 1982/1344 simplified gives 991/672
- So, 8/21 + 70/64 = 991/672
In mixed form: 1319/672
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