Subtract 70/45 from 9/80
1st number: 9/80, 2nd number: 1 25/45
9/80 - 70/45 is -1039/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 45 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
9/80 = 9 × 9/80 × 9 = 81/720 - Likewise, for the 2nd fraction, since 45 × 16 = 720,
70/45 = 70 × 16/45 × 16 = 1120/720 - Subtract the two like fractions:
81/720 - 1120/720 = 81 - 1120/720 = -1039/720
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