Subtract 20/72 from 90/32
1st number: 2 26/32, 2nd number: 20/72
90/32 - 20/72 is 365/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 72 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 32 × 9 = 288,
90/32 = 90 × 9/32 × 9 = 810/288 - Likewise, for the 2nd fraction, since 72 × 4 = 288,
20/72 = 20 × 4/72 × 4 = 80/288 - Subtract the two like fractions:
810/288 - 80/288 = 810 - 80/288 = 730/288 - After reducing the fraction, the answer is 365/144
- In mixed form: 277/144
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