Subtract 81/72 from 12/5
1st number: 2 2/5, 2nd number: 1 9/72
12/5 - 81/72 is 51/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
12/5 = 12 × 72/5 × 72 = 864/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Subtract the two like fractions:
864/360 - 405/360 = 864 - 405/360 = 459/360 - After reducing the fraction, the answer is 51/40
- In mixed form: 111/40
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