Subtract 50/30 from 15/35
1st number: 15/35, 2nd number: 1 20/30
15/35 - 50/30 is -26/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
15/35 = 15 × 6/35 × 6 = 90/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
50/30 = 50 × 7/30 × 7 = 350/210 - Subtract the two like fractions:
90/210 - 350/210 = 90 - 350/210 = -260/210 - After reducing the fraction, the answer is -26/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35-50/30 15/70-50/30 15/35-50/60 45/35-50/30 15/35-50/90 75/35-50/30