Subtract 15/45 from 63/21
1st number: 3 0/21, 2nd number: 15/45
63/21 - 15/45 is 8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
63/21 = 63 × 15/21 × 15 = 945/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
15/45 = 15 × 7/45 × 7 = 105/315 - Subtract the two like fractions:
945/315 - 105/315 = 945 - 105/315 = 840/315 - After reducing the fraction, the answer is 8/3
- In mixed form: 22/3
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