Subtract 70/25 from 98/20
1st number: 4 18/20, 2nd number: 2 20/25
98/20 - 70/25 is 21/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 20 × 5 = 100,
98/20 = 98 × 5/20 × 5 = 490/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
70/25 = 70 × 4/25 × 4 = 280/100 - Subtract the two like fractions:
490/100 - 280/100 = 490 - 280/100 = 210/100 - After reducing the fraction, the answer is 21/10
- In mixed form: 21/10
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