Subtract 90/50 from 3/80
1st number: 3/80, 2nd number: 1 40/50
3/80 - 90/50 is -141/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
3/80 = 3 × 5/80 × 5 = 15/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
90/50 = 90 × 8/50 × 8 = 720/400 - Subtract the two like fractions:
15/400 - 720/400 = 15 - 720/400 = -705/400 - After reducing the fraction, the answer is -141/80
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