Subtract 18/70 from 3/2
1st number: 1 1/2, 2nd number: 18/70
3/2 - 18/70 is 87/70.
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,
3/2 = 3 × 35/2 × 35 = 105/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
18/70 = 18 × 1/70 × 1 = 18/70 - Subtract the two like fractions:
105/70 - 18/70 = 105 - 18/70 = 87/70 - In mixed form: 117/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/2-18/70 3/2-36/70 3/4-18/70 9/2-18/70 3/2-54/70 3/6-18/70 15/2-18/70 3/2-90/70 3/10-18/70 21/2-18/70 3/14-18/70