Subtract 50/70 from 90/18
1st number: 5 0/18, 2nd number: 50/70
90/18 - 50/70 is 30/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
90/18 = 90 × 35/18 × 35 = 3150/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
50/70 = 50 × 9/70 × 9 = 450/630 - Subtract the two like fractions:
3150/630 - 450/630 = 3150 - 450/630 = 2700/630 - After reducing the fraction, the answer is 30/7
- In mixed form: 42/7
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