Subtract 18/16 from 42/7
1st number: 6 0/7, 2nd number: 1 2/16
42/7 - 18/16 is 39/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
42/7 = 42 × 16/7 × 16 = 672/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
18/16 = 18 × 7/16 × 7 = 126/112 - Subtract the two like fractions:
672/112 - 126/112 = 672 - 126/112 = 546/112 - After reducing the fraction, the answer is 39/8
- In mixed form: 47/8
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