Subtract 63/80 from 90/45
1st number: 2 0/45, 2nd number: 63/80
90/45 - 63/80 is 97/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
90/45 = 90 × 16/45 × 16 = 1440/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
63/80 = 63 × 9/80 × 9 = 567/720 - Subtract the two like fractions:
1440/720 - 567/720 = 1440 - 567/720 = 873/720 - After reducing the fraction, the answer is 97/80
- In mixed form: 117/80
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