Add 64/8 and 75/21
1st number: 8 0/8, 2nd number: 3 12/21
64/8 + 75/21 is 81/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
64/8 = 64 × 21/8 × 21 = 1344/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
75/21 = 75 × 8/21 × 8 = 600/168 - Add the two like fractions:
1344/168 + 600/168 = 1344 + 600/168 = 1944/168 - 1944/168 simplified gives 81/7
- So, 64/8 + 75/21 = 81/7
In mixed form: 114/7
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