Subtract 12/90 from 70/25
1st number: 2 20/25, 2nd number: 12/90
70/25 - 12/90 is 8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
70/25 = 70 × 18/25 × 18 = 1260/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
12/90 = 12 × 5/90 × 5 = 60/450 - Subtract the two like fractions:
1260/450 - 60/450 = 1260 - 60/450 = 1200/450 - After reducing the fraction, the answer is 8/3
- In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25-24/90 70/50-12/90 70/25-36/90 70/75-12/90 70/25-60/90 70/25-84/90