Subtract 4/90 from 70/64
1st number: 1 6/64, 2nd number: 4/90
70/64 - 4/90 is 1511/1440.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 90 is 2880
Next, find the equivalent fraction of both fractional numbers with denominator 2880 - For the 1st fraction, since 64 × 45 = 2880,
70/64 = 70 × 45/64 × 45 = 3150/2880 - Likewise, for the 2nd fraction, since 90 × 32 = 2880,
4/90 = 4 × 32/90 × 32 = 128/2880 - Subtract the two like fractions:
3150/2880 - 128/2880 = 3150 - 128/2880 = 3022/2880 - After reducing the fraction, the answer is 1511/1440
- In mixed form: 171/1440
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