Subtract 3/40 from 20/6
1st number: 3 2/6, 2nd number: 3/40
20/6 - 3/40 is 391/120.
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,
20/6 = 20 × 20/6 × 20 = 400/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
3/40 = 3 × 3/40 × 3 = 9/120 - Subtract the two like fractions:
400/120 - 9/120 = 400 - 9/120 = 391/120 - In mixed form: 331/120
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