Subtract 30/84 from 2/9
2/9 - 30/84 is -17/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
2/9 = 2 × 28/9 × 28 = 56/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
30/84 = 30 × 3/84 × 3 = 90/252 - Subtract the two like fractions:
56/252 - 90/252 = 56 - 90/252 = -34/252 - After reducing the fraction, the answer is -17/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/9-30/84 2/9-60/84 2/18-30/84 6/9-30/84 2/9-90/84 2/27-30/84 10/9-30/84 2/45-30/84 14/9-30/84 2/63-30/84