Subtract 18/8 from 42/4
1st number: 10 2/4, 2nd number: 2 2/8
42/4 - 18/8 is 33/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 8 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 4 × 2 = 8,
42/4 = 42 × 2/4 × 2 = 84/8 - Likewise, for the 2nd fraction, since 8 × 1 = 8,
18/8 = 18 × 1/8 × 1 = 18/8 - Subtract the two like fractions:
84/8 - 18/8 = 84 - 18/8 = 66/8 - After reducing the fraction, the answer is 33/4
- In mixed form: 81/4
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