Subtract 9/42 from 63/45
1st number: 1 18/45, 2nd number: 9/42
63/45 - 9/42 is 83/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
63/45 = 63 × 14/45 × 14 = 882/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
9/42 = 9 × 15/42 × 15 = 135/630 - Subtract the two like fractions:
882/630 - 135/630 = 882 - 135/630 = 747/630 - After reducing the fraction, the answer is 83/70
- In mixed form: 113/70
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