Subtract 4/70 from 72/18
1st number: 4 0/18, 2nd number: 4/70
72/18 - 4/70 is 138/35.
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,
72/18 = 72 × 35/18 × 35 = 2520/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630 - Subtract the two like fractions:
2520/630 - 36/630 = 2520 - 36/630 = 2484/630 - After reducing the fraction, the answer is 138/35
- In mixed form: 333/35
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