Subtract 30/10 from 70/49
1st number: 1 21/49, 2nd number: 3 0/10
70/49 - 30/10 is -11/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 10 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
70/49 = 70 × 10/49 × 10 = 700/490 - Likewise, for the 2nd fraction, since 10 × 49 = 490,
30/10 = 30 × 49/10 × 49 = 1470/490 - Subtract the two like fractions:
700/490 - 1470/490 = 700 - 1470/490 = -770/490 - After reducing the fraction, the answer is -11/7
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