Subtract 81/32 from 20/4
1st number: 5 0/4, 2nd number: 2 17/32
20/4 - 81/32 is 79/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 32 is 32
Next, find the equivalent fraction of both fractional numbers with denominator 32 - For the 1st fraction, since 4 × 8 = 32,
20/4 = 20 × 8/4 × 8 = 160/32 - Likewise, for the 2nd fraction, since 32 × 1 = 32,
81/32 = 81 × 1/32 × 1 = 81/32 - Subtract the two like fractions:
160/32 - 81/32 = 160 - 81/32 = 79/32 - In mixed form: 215/32
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