Subtract 3/90 from 70/40
1st number: 1 30/40, 2nd number: 3/90
70/40 - 3/90 is 103/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
3/90 = 3 × 4/90 × 4 = 12/360 - Subtract the two like fractions:
630/360 - 12/360 = 630 - 12/360 = 618/360 - After reducing the fraction, the answer is 103/60
- In mixed form: 143/60
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