Subtract 15/80 from 90/63
1st number: 1 27/63, 2nd number: 15/80
90/63 - 15/80 is 139/112.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
90/63 = 90 × 80/63 × 80 = 7200/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
15/80 = 15 × 63/80 × 63 = 945/5040 - Subtract the two like fractions:
7200/5040 - 945/5040 = 7200 - 945/5040 = 6255/5040 - After reducing the fraction, the answer is 139/112
- In mixed form: 127/112
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