Subtract 7/64 from 21/12
1st number: 1 9/12, 2nd number: 7/64
21/12 - 7/64 is 105/64.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 64 is 192
Next, find the equivalent fraction of both fractional numbers with denominator 192 - For the 1st fraction, since 12 × 16 = 192,
21/12 = 21 × 16/12 × 16 = 336/192 - Likewise, for the 2nd fraction, since 64 × 3 = 192,
7/64 = 7 × 3/64 × 3 = 21/192 - Subtract the two like fractions:
336/192 - 21/192 = 336 - 21/192 = 315/192 - After reducing the fraction, the answer is 105/64
- In mixed form: 141/64
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