Subtract 5/90 from 70/30
1st number: 2 10/30, 2nd number: 5/90
70/30 - 5/90 is 41/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
70/30 = 70 × 3/30 × 3 = 210/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
5/90 = 5 × 1/90 × 1 = 5/90 - Subtract the two like fractions:
210/90 - 5/90 = 210 - 5/90 = 205/90 - After reducing the fraction, the answer is 41/18
- In mixed form: 25/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30-10/90 70/60-5/90 70/30-15/90 70/90-5/90 70/30-25/90 70/30-35/90