Subtract 20/30 from 70/49
1st number: 1 21/49, 2nd number: 20/30
70/49 - 20/30 is 16/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 49 × 30 = 1470,
70/49 = 70 × 30/49 × 30 = 2100/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
20/30 = 20 × 49/30 × 49 = 980/1470 - Subtract the two like fractions:
2100/1470 - 980/1470 = 2100 - 980/1470 = 1120/1470 - After reducing the fraction, the answer is 16/21
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