Subtract 21/6 from 25/40
1st number: 25/40, 2nd number: 3 3/6
25/40 - 21/6 is -23/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 6 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
25/40 = 25 × 3/40 × 3 = 75/120 - Likewise, for the 2nd fraction, since 6 × 20 = 120,
21/6 = 21 × 20/6 × 20 = 420/120 - Subtract the two like fractions:
75/120 - 420/120 = 75 - 420/120 = -345/120 - After reducing the fraction, the answer is -23/8
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