Subtract 4/30 from 42/18
1st number: 2 6/18, 2nd number: 4/30
42/18 - 4/30 is 11/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
4/30 = 4 × 3/30 × 3 = 12/90 - Subtract the two like fractions:
210/90 - 12/90 = 210 - 12/90 = 198/90 - After reducing the fraction, the answer is 11/5
- In mixed form: 21/5
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