Subtract 70/42 from 4/50
1st number: 4/50, 2nd number: 1 28/42
4/50 - 70/42 is -119/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 50 × 21 = 1050,
4/50 = 4 × 21/50 × 21 = 84/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
70/42 = 70 × 25/42 × 25 = 1750/1050 - Subtract the two like fractions:
84/1050 - 1750/1050 = 84 - 1750/1050 = -1666/1050 - After reducing the fraction, the answer is -119/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/50-70/42 4/50-70/84 12/50-70/42 20/50-70/42 28/50-70/42