Subtract 30/3 from 5/70
1st number: 5/70, 2nd number: 10 0/3
5/70 - 30/3 is -139/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
5/70 = 5 × 3/70 × 3 = 15/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
30/3 = 30 × 70/3 × 70 = 2100/210 - Subtract the two like fractions:
15/210 - 2100/210 = 15 - 2100/210 = -2085/210 - After reducing the fraction, the answer is -139/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/70-30/3 5/70-60/3 5/70-30/6 15/70-30/3 5/70-90/3 5/70-30/9 25/70-30/3 5/70-30/15 35/70-30/3 5/70-30/21