Subtract 18/15 from 42/2
1st number: 21 0/2, 2nd number: 1 3/15
42/2 - 18/15 is 99/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
42/2 = 42 × 15/2 × 15 = 630/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
18/15 = 18 × 2/15 × 2 = 36/30 - Subtract the two like fractions:
630/30 - 36/30 = 630 - 36/30 = 594/30 - After reducing the fraction, the answer is 99/5
- In mixed form: 194/5
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