Subtract 81/32 from 30/20
1st number: 1 10/20, 2nd number: 2 17/32
30/20 - 81/32 is -33/32.
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,
30/20 = 30 × 8/20 × 8 = 240/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
81/32 = 81 × 5/32 × 5 = 405/160 - Subtract the two like fractions:
240/160 - 405/160 = 240 - 405/160 = -165/160 - After reducing the fraction, the answer is -33/32
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