Subtract 45/21 from 70/50
1st number: 1 20/50, 2nd number: 2 3/21
70/50 - 45/21 is -26/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 21 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
70/50 = 70 × 21/50 × 21 = 1470/1050 - Likewise, for the 2nd fraction, since 21 × 50 = 1050,
45/21 = 45 × 50/21 × 50 = 2250/1050 - Subtract the two like fractions:
1470/1050 - 2250/1050 = 1470 - 2250/1050 = -780/1050 - After reducing the fraction, the answer is -26/35
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