Subtract 30/63 from 2/18
2/18 - 30/63 is -23/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
2/18 = 2 × 7/18 × 7 = 14/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
30/63 = 30 × 2/63 × 2 = 60/126 - Subtract the two like fractions:
14/126 - 60/126 = 14 - 60/126 = -46/126 - After reducing the fraction, the answer is -23/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/18-30/63 2/18-60/63 2/36-30/63 6/18-30/63 2/18-90/63 2/54-30/63 10/18-30/63 2/90-30/63 14/18-30/63