Subtract 21/10 from 70/64
1st number: 1 6/64, 2nd number: 2 1/10
70/64 - 21/10 is -161/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 10 is 320
Next, find the equivalent fraction of both fractional numbers with denominator 320 - For the 1st fraction, since 64 × 5 = 320,
70/64 = 70 × 5/64 × 5 = 350/320 - Likewise, for the 2nd fraction, since 10 × 32 = 320,
21/10 = 21 × 32/10 × 32 = 672/320 - Subtract the two like fractions:
350/320 - 672/320 = 350 - 672/320 = -322/320 - After reducing the fraction, the answer is -161/160
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