Subtract 50/21 from 54/70
1st number: 54/70, 2nd number: 2 8/21
54/70 - 50/21 is -169/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
54/70 = 54 × 3/70 × 3 = 162/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
50/21 = 50 × 10/21 × 10 = 500/210 - Subtract the two like fractions:
162/210 - 500/210 = 162 - 500/210 = -338/210 - After reducing the fraction, the answer is -169/105
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