Subtract 81/32 from 12/5
1st number: 2 2/5, 2nd number: 2 17/32
12/5 - 81/32 is -21/160.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 32 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 5 × 32 = 160,
12/5 = 12 × 32/5 × 32 = 384/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
81/32 = 81 × 5/32 × 5 = 405/160 - Subtract the two like fractions:
384/160 - 405/160 = 384 - 405/160 = -21/160
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