Subtract 70/4 from 15/50
1st number: 15/50, 2nd number: 17 2/4
15/50 - 70/4 is -86/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 4 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
15/50 = 15 × 2/50 × 2 = 30/100 - Likewise, for the 2nd fraction, since 4 × 25 = 100,
70/4 = 70 × 25/4 × 25 = 1750/100 - Subtract the two like fractions:
30/100 - 1750/100 = 30 - 1750/100 = -1720/100 - After reducing the fraction, the answer is -86/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/50-70/4 15/50-70/8 45/50-70/4 15/50-70/12 75/50-70/4 15/50-70/20 15/50-70/28