Subtract 15/80 from 63/21
1st number: 3 0/21, 2nd number: 15/80
63/21 - 15/80 is 45/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 21 × 80 = 1680,
63/21 = 63 × 80/21 × 80 = 5040/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
15/80 = 15 × 21/80 × 21 = 315/1680 - Subtract the two like fractions:
5040/1680 - 315/1680 = 5040 - 315/1680 = 4725/1680 - After reducing the fraction, the answer is 45/16
- In mixed form: 213/16
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