Subtract 21/3 from 63/70
1st number: 63/70, 2nd number: 7 0/3
63/70 - 21/3 is -61/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
63/70 = 63 × 3/70 × 3 = 189/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
21/3 = 21 × 70/3 × 70 = 1470/210 - Subtract the two like fractions:
189/210 - 1470/210 = 189 - 1470/210 = -1281/210 - After reducing the fraction, the answer is -61/10
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