Subtract 90/9 from 4/80
1st number: 4/80, 2nd number: 10 0/9
4/80 - 90/9 is -199/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
4/80 = 4 × 9/80 × 9 = 36/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
90/9 = 90 × 80/9 × 80 = 7200/720 - Subtract the two like fractions:
36/720 - 7200/720 = 36 - 7200/720 = -7164/720 - After reducing the fraction, the answer is -199/20
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