Subtract 70/50 from 21/63
1st number: 21/63, 2nd number: 1 20/50
21/63 - 70/50 is -16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 50 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 63 × 50 = 3150,
21/63 = 21 × 50/63 × 50 = 1050/3150 - Likewise, for the 2nd fraction, since 50 × 63 = 3150,
70/50 = 70 × 63/50 × 63 = 4410/3150 - Subtract the two like fractions:
1050/3150 - 4410/3150 = 1050 - 4410/3150 = -3360/3150 - After reducing the fraction, the answer is -16/15
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