Subtract 4/72 from 90/64
1st number: 1 26/64, 2nd number: 4/72
90/64 - 4/72 is 389/288.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 64 and 72 is 576
Next, find the equivalent fraction of both fractional numbers with denominator 576 - For the 1st fraction, since 64 × 9 = 576,
90/64 = 90 × 9/64 × 9 = 810/576 - Likewise, for the 2nd fraction, since 72 × 8 = 576,
4/72 = 4 × 8/72 × 8 = 32/576 - Subtract the two like fractions:
810/576 - 32/576 = 810 - 32/576 = 778/576 - After reducing the fraction, the answer is 389/288
- In mixed form: 1101/288
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