Subtract 20/90 from 70/6
1st number: 11 4/6, 2nd number: 20/90
70/6 - 20/90 is 103/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
70/6 = 70 × 15/6 × 15 = 1050/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Subtract the two like fractions:
1050/90 - 20/90 = 1050 - 20/90 = 1030/90 - After reducing the fraction, the answer is 103/9
- In mixed form: 114/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/6-40/90 70/12-20/90 70/6-60/90 70/18-20/90 70/30-20/90 70/42-20/90