Subtract 42/10 from 20/36
1st number: 20/36, 2nd number: 4 2/10
20/36 - 42/10 is -164/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 10 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Likewise, for the 2nd fraction, since 10 × 18 = 180,
42/10 = 42 × 18/10 × 18 = 756/180 - Subtract the two like fractions:
100/180 - 756/180 = 100 - 756/180 = -656/180 - After reducing the fraction, the answer is -164/45
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