Subtract 50/90 from 72/42
1st number: 1 30/42, 2nd number: 50/90
72/42 - 50/90 is 73/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
72/42 = 72 × 15/42 × 15 = 1080/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
50/90 = 50 × 7/90 × 7 = 350/630 - Subtract the two like fractions:
1080/630 - 350/630 = 1080 - 350/630 = 730/630 - After reducing the fraction, the answer is 73/63
- In mixed form: 110/63
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