Subtract 30/25 from 40/80
1st number: 40/80, 2nd number: 1 5/25
40/80 - 30/25 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
40/80 = 40 × 5/80 × 5 = 200/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
30/25 = 30 × 16/25 × 16 = 480/400 - Subtract the two like fractions:
200/400 - 480/400 = 200 - 480/400 = -280/400 - After reducing the fraction, the answer is -7/10
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