Subtract 7/21 from 70/2
1st number: 35 0/2, 2nd number: 7/21
70/2 - 7/21 is 104/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
70/2 = 70 × 21/2 × 21 = 1470/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
7/21 = 7 × 2/21 × 2 = 14/42 - Subtract the two like fractions:
1470/42 - 14/42 = 1470 - 14/42 = 1456/42 - After reducing the fraction, the answer is 104/3
- In mixed form: 342/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/2-14/21 70/4-7/21 70/2-7/42 70/6-7/21 70/2-7/63 70/2-35/21 70/10-7/21 70/2-49/21 70/14-7/21