Subtract 70/30 from 18/2
1st number: 9 0/2, 2nd number: 2 10/30
18/2 - 70/30 is 20/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
18/2 = 18 × 15/2 × 15 = 270/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
70/30 = 70 × 1/30 × 1 = 70/30 - Subtract the two like fractions:
270/30 - 70/30 = 270 - 70/30 = 200/30 - After reducing the fraction, the answer is 20/3
- In mixed form: 62/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/2-70/30 18/4-70/30 18/2-70/60 54/2-70/30 18/6-70/30 18/2-70/90 90/2-70/30 18/10-70/30 18/14-70/30