Subtract 15/81 from 72/10
1st number: 7 2/10, 2nd number: 15/81
72/10 - 15/81 is 947/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
72/10 = 72 × 81/10 × 81 = 5832/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
15/81 = 15 × 10/81 × 10 = 150/810 - Subtract the two like fractions:
5832/810 - 150/810 = 5832 - 150/810 = 5682/810 - After reducing the fraction, the answer is 947/135
- In mixed form: 72/135
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