Subtract 72/49 from 7/40
1st number: 7/40, 2nd number: 1 23/49
7/40 - 72/49 is -2537/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
7/40 = 7 × 49/40 × 49 = 343/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
72/49 = 72 × 40/49 × 40 = 2880/1960 - Subtract the two like fractions:
343/1960 - 2880/1960 = 343 - 2880/1960 = -2537/1960
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