Subtract 70/20 from 63/70
1st number: 63/70, 2nd number: 3 10/20
63/70 - 70/20 is -13/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
63/70 = 63 × 2/70 × 2 = 126/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
70/20 = 70 × 7/20 × 7 = 490/140 - Subtract the two like fractions:
126/140 - 490/140 = 126 - 490/140 = -364/140 - After reducing the fraction, the answer is -13/5
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