Subtract 20/8 from 42/6
1st number: 7 0/6, 2nd number: 2 4/8
42/6 - 20/8 is 9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 6 × 4 = 24,
42/6 = 42 × 4/6 × 4 = 168/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
20/8 = 20 × 3/8 × 3 = 60/24 - Subtract the two like fractions:
168/24 - 60/24 = 168 - 60/24 = 108/24 - After reducing the fraction, the answer is 9/2
- In mixed form: 41/2
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