Subtract 45/20 from 70/10
1st number: 7 0/10, 2nd number: 2 5/20
70/10 - 45/20 is 19/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
70/10 = 70 × 2/10 × 2 = 140/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Subtract the two like fractions:
140/20 - 45/20 = 140 - 45/20 = 95/20 - After reducing the fraction, the answer is 19/4
- In mixed form: 43/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10-90/20 70/20-45/20 70/10-45/40 70/30-45/20 70/10-45/60 70/50-45/20