Subtract 42/12 from 90/16
1st number: 5 10/16, 2nd number: 3 6/12
90/16 - 42/12 is 17/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 16 × 3 = 48,
90/16 = 90 × 3/16 × 3 = 270/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
42/12 = 42 × 4/12 × 4 = 168/48 - Subtract the two like fractions:
270/48 - 168/48 = 270 - 168/48 = 102/48 - After reducing the fraction, the answer is 17/8
- In mixed form: 21/8
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