Subtract 72/10 from 49/20
1st number: 2 9/20, 2nd number: 7 2/10
49/20 - 72/10 is -19/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
49/20 = 49 × 1/20 × 1 = 49/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
72/10 = 72 × 2/10 × 2 = 144/20 - Subtract the two like fractions:
49/20 - 144/20 = 49 - 144/20 = -95/20 - After reducing the fraction, the answer is -19/4
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