Subtract 30/15 from 42/4
1st number: 10 2/4, 2nd number: 2 0/15
42/4 - 30/15 is 17/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
42/4 = 42 × 15/4 × 15 = 630/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
30/15 = 30 × 4/15 × 4 = 120/60 - Subtract the two like fractions:
630/60 - 120/60 = 630 - 120/60 = 510/60 - After reducing the fraction, the answer is 17/2
- In mixed form: 81/2
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