Subtract 21/72 from 54/40
1st number: 1 14/40, 2nd number: 21/72
54/40 - 21/72 is 127/120.
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,
54/40 = 54 × 9/40 × 9 = 486/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Subtract the two like fractions:
486/360 - 105/360 = 486 - 105/360 = 381/360 - After reducing the fraction, the answer is 127/120
- In mixed form: 17/120
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