Subtract 20/18 from 32/45
1st number: 32/45, 2nd number: 1 2/18
32/45 - 20/18 is -2/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
32/45 = 32 × 2/45 × 2 = 64/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
64/90 - 100/90 = 64 - 100/90 = -36/90 - After reducing the fraction, the answer is -2/5
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