Subtract 42/30 from 18/4
1st number: 4 2/4, 2nd number: 1 12/30
18/4 - 42/30 is 31/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
18/4 = 18 × 15/4 × 15 = 270/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
42/30 = 42 × 2/30 × 2 = 84/60 - Subtract the two like fractions:
270/60 - 84/60 = 270 - 84/60 = 186/60 - After reducing the fraction, the answer is 31/10
- In mixed form: 31/10
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