Subtract 81/30 from 70/12
1st number: 5 10/12, 2nd number: 2 21/30
70/12 - 81/30 is 47/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
81/30 = 81 × 2/30 × 2 = 162/60 - Subtract the two like fractions:
350/60 - 162/60 = 350 - 162/60 = 188/60 - After reducing the fraction, the answer is 47/15
- In mixed form: 32/15
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