Subtract 70/25 from 4/45
1st number: 4/45, 2nd number: 2 20/25
4/45 - 70/25 is -122/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 25 is 225
Next, find the equivalent fraction of both fractional numbers with denominator 225 - For the 1st fraction, since 45 × 5 = 225,
4/45 = 4 × 5/45 × 5 = 20/225 - Likewise, for the 2nd fraction, since 25 × 9 = 225,
70/25 = 70 × 9/25 × 9 = 630/225 - Subtract the two like fractions:
20/225 - 630/225 = 20 - 630/225 = -610/225 - After reducing the fraction, the answer is -122/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-70/25 4/90-70/25 4/45-70/50 12/45-70/25 4/45-70/75 20/45-70/25 28/45-70/25