Subtract 9/32 from 72/20
1st number: 3 12/20, 2nd number: 9/32
72/20 - 9/32 is 531/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 20 × 8 = 160,
72/20 = 72 × 8/20 × 8 = 576/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
9/32 = 9 × 5/32 × 5 = 45/160 - Subtract the two like fractions:
576/160 - 45/160 = 576 - 45/160 = 531/160 - In mixed form: 351/160
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