Subtract 20/70 from 80/18
1st number: 4 8/18, 2nd number: 20/70
80/18 - 20/70 is 262/63.
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,
80/18 = 80 × 35/18 × 35 = 2800/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
20/70 = 20 × 9/70 × 9 = 180/630 - Subtract the two like fractions:
2800/630 - 180/630 = 2800 - 180/630 = 2620/630 - After reducing the fraction, the answer is 262/63
- In mixed form: 410/63
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