Subtract 3/90 from 20/32
20/32 - 3/90 is 71/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 90 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 32 × 45 = 1440,
20/32 = 20 × 45/32 × 45 = 900/1440 - Likewise, for the 2nd fraction, since 90 × 16 = 1440,
3/90 = 3 × 16/90 × 16 = 48/1440 - Subtract the two like fractions:
900/1440 - 48/1440 = 900 - 48/1440 = 852/1440 - After reducing the fraction, the answer is 71/120
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