Subtract 21/30 from 70/14
1st number: 5 0/14, 2nd number: 21/30
70/14 - 21/30 is 43/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
70/14 = 70 × 15/14 × 15 = 1050/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
21/30 = 21 × 7/30 × 7 = 147/210 - Subtract the two like fractions:
1050/210 - 147/210 = 1050 - 147/210 = 903/210 - After reducing the fraction, the answer is 43/10
- In mixed form: 43/10
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