Subtract 1/30 from 90/12
1st number: 7 6/12, 2nd number: 1/30
90/12 - 1/30 is 112/15.
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,
90/12 = 90 × 5/12 × 5 = 450/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
1/30 = 1 × 2/30 × 2 = 2/60 - Subtract the two like fractions:
450/60 - 2/60 = 450 - 2/60 = 448/60 - After reducing the fraction, the answer is 112/15
- In mixed form: 77/15
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