Subtract 90/32 from 18/20
1st number: 18/20, 2nd number: 2 26/32
18/20 - 90/32 is -153/80.
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,
18/20 = 18 × 8/20 × 8 = 144/160 - Likewise, for the 2nd fraction, since 32 × 5 = 160,
90/32 = 90 × 5/32 × 5 = 450/160 - Subtract the two like fractions:
144/160 - 450/160 = 144 - 450/160 = -306/160 - After reducing the fraction, the answer is -153/80
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