Subtract 30/72 from 81/30
1st number: 2 21/30, 2nd number: 30/72
81/30 - 30/72 is 137/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
81/30 = 81 × 12/30 × 12 = 972/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360 - Subtract the two like fractions:
972/360 - 150/360 = 972 - 150/360 = 822/360 - After reducing the fraction, the answer is 137/60
- In mixed form: 217/60
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