Subtract 84/70 from 7/2
1st number: 3 1/2, 2nd number: 1 14/70
7/2 - 84/70 is 23/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
7/2 = 7 × 35/2 × 35 = 245/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
84/70 = 84 × 1/70 × 1 = 84/70 - Subtract the two like fractions:
245/70 - 84/70 = 245 - 84/70 = 161/70 - After reducing the fraction, the answer is 23/10
- In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2-84/70 7/4-84/70 21/2-84/70 7/6-84/70 35/2-84/70 7/10-84/70 49/2-84/70 7/14-84/70