Subtract 80/18 from 7/80
1st number: 7/80, 2nd number: 4 8/18
7/80 - 80/18 is -3137/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
7/80 = 7 × 9/80 × 9 = 63/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
80/18 = 80 × 40/18 × 40 = 3200/720 - Subtract the two like fractions:
63/720 - 3200/720 = 63 - 3200/720 = -3137/720
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