Subtract 18/40 from 42/6
1st number: 7 0/6, 2nd number: 18/40
42/6 - 18/40 is 131/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 6 × 20 = 120,
42/6 = 42 × 20/6 × 20 = 840/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Subtract the two like fractions:
840/120 - 54/120 = 840 - 54/120 = 786/120 - After reducing the fraction, the answer is 131/20
- In mixed form: 611/20
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