Subtract 30/70 from 2/9
2/9 - 30/70 is -13/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 9 × 70 = 630,
2/9 = 2 × 70/9 × 70 = 140/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Subtract the two like fractions:
140/630 - 270/630 = 140 - 270/630 = -130/630 - After reducing the fraction, the answer is -13/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/9-30/70 2/9-60/70 2/18-30/70 6/9-30/70 2/9-90/70 2/27-30/70 10/9-30/70 2/45-30/70 14/9-30/70 2/63-30/70