Subtract 70/20 from 56/64
1st number: 56/64, 2nd number: 3 10/20
56/64 - 70/20 is -21/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 20 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
56/64 = 56 × 5/64 × 5 = 280/320 - Likewise, for the 2nd fraction, since 20 × 16 = 320,
70/20 = 70 × 16/20 × 16 = 1120/320 - Subtract the two like fractions:
280/320 - 1120/320 = 280 - 1120/320 = -840/320 - After reducing the fraction, the answer is -21/8
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