Subtract 42/72 from 49/40
1st number: 1 9/40, 2nd number: 42/72
49/40 - 42/72 is 77/120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
49/40 = 49 × 9/40 × 9 = 441/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Subtract the two like fractions:
441/360 - 210/360 = 441 - 210/360 = 231/360 - After reducing the fraction, the answer is 77/120
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