Subtract 72/10 from 49/40
1st number: 1 9/40, 2nd number: 7 2/10
49/40 - 72/10 is -239/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
49/40 = 49 × 1/40 × 1 = 49/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
72/10 = 72 × 4/10 × 4 = 288/40 - Subtract the two like fractions:
49/40 - 288/40 = 49 - 288/40 = -239/40
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