Subtract 84/45 from 70/49
1st number: 1 21/49, 2nd number: 1 39/45
70/49 - 84/45 is -46/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
70/49 = 70 × 45/49 × 45 = 3150/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
84/45 = 84 × 49/45 × 49 = 4116/2205 - Subtract the two like fractions:
3150/2205 - 4116/2205 = 3150 - 4116/2205 = -966/2205 - After reducing the fraction, the answer is -46/105
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