Subtract 8/30 from 15/35
15/35 - 8/30 is 17/105.
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,
8/30 = 8 × 7/30 × 7 = 56/210 - Subtract the two like fractions:
90/210 - 56/210 = 90 - 56/210 = 34/210 - After reducing the fraction, the answer is 17/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35-8/30 15/35-16/30 15/70-8/30 15/35-8/60 45/35-8/30 15/35-24/30 15/35-8/90 75/35-8/30 15/35-40/30 15/35-56/30