Subtract 9/72 from 81/5
1st number: 16 1/5, 2nd number: 9/72
81/5 - 9/72 is 643/40.
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,
81/5 = 81 × 72/5 × 72 = 5832/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Subtract the two like fractions:
5832/360 - 45/360 = 5832 - 45/360 = 5787/360 - After reducing the fraction, the answer is 643/40
- In mixed form: 163/40
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