Subtract 45/35 from 70/20
1st number: 3 10/20, 2nd number: 1 10/35
70/20 - 45/35 is 31/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
45/35 = 45 × 4/35 × 4 = 180/140 - Subtract the two like fractions:
490/140 - 180/140 = 490 - 180/140 = 310/140 - After reducing the fraction, the answer is 31/14
- In mixed form: 23/14
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