Subtract 18/8 from 42/2
1st number: 21 0/2, 2nd number: 2 2/8
42/2 - 18/8 is 75/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 2 × 4 = 8,
42/2 = 42 × 4/2 × 4 = 168/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
18/8 = 18 × 1/8 × 1 = 18/8 - Subtract the two like fractions:
168/8 - 18/8 = 168 - 18/8 = 150/8 - After reducing the fraction, the answer is 75/4
- In mixed form: 183/4
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