Subtract 8/70 from 30/15
1st number: 2 0/15, 2nd number: 8/70
30/15 - 8/70 is 66/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
30/15 = 30 × 14/15 × 14 = 420/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
8/70 = 8 × 3/70 × 3 = 24/210 - Subtract the two like fractions:
420/210 - 24/210 = 420 - 24/210 = 396/210 - After reducing the fraction, the answer is 66/35
- In mixed form: 131/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15-8/70 30/15-16/70 90/15-8/70 30/15-24/70 30/45-8/70 30/15-40/70 30/75-8/70 30/15-56/70