Subtract 6/18 from 70/50
1st number: 1 20/50, 2nd number: 6/18
70/50 - 6/18 is 16/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
70/50 = 70 × 9/50 × 9 = 630/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
6/18 = 6 × 25/18 × 25 = 150/450 - Subtract the two like fractions:
630/450 - 150/450 = 630 - 150/450 = 480/450 - After reducing the fraction, the answer is 16/15
- In mixed form: 11/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/50-12/18 70/50-6/36 70/50-6/54 70/50-30/18 70/50-6/90 70/50-42/18