Subtract 90/70 from 27/64
1st number: 27/64, 2nd number: 1 20/70
27/64 - 90/70 is -387/448.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 70 is 2240
Next, find the equivalent fraction of both fractional numbers with denominator 2240 - For the 1st fraction, since 64 × 35 = 2240,
27/64 = 27 × 35/64 × 35 = 945/2240 - Likewise, for the 2nd fraction, since 70 × 32 = 2240,
90/70 = 90 × 32/70 × 32 = 2880/2240 - Subtract the two like fractions:
945/2240 - 2880/2240 = 945 - 2880/2240 = -1935/2240 - After reducing the fraction, the answer is -387/448
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