Subtract 2/90 from 70/20
1st number: 3 10/20, 2nd number: 2/90
70/20 - 2/90 is 313/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
2/90 = 2 × 2/90 × 2 = 4/180 - Subtract the two like fractions:
630/180 - 4/180 = 630 - 4/180 = 626/180 - After reducing the fraction, the answer is 313/90
- In mixed form: 343/90
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