Subtract 63/12 from 90/5
1st number: 18 0/5, 2nd number: 5 3/12
90/5 - 63/12 is 51/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
90/5 = 90 × 12/5 × 12 = 1080/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
63/12 = 63 × 5/12 × 5 = 315/60 - Subtract the two like fractions:
1080/60 - 315/60 = 1080 - 315/60 = 765/60 - After reducing the fraction, the answer is 51/4
- In mixed form: 123/4
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