Subtract 1/63 from 30/18
1st number: 1 12/18, 2nd number: 1/63
30/18 - 1/63 is 104/63.
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,
30/18 = 30 × 7/18 × 7 = 210/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
1/63 = 1 × 2/63 × 2 = 2/126 - Subtract the two like fractions:
210/126 - 2/126 = 210 - 2/126 = 208/126 - After reducing the fraction, the answer is 104/63
- In mixed form: 141/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18-1/63 30/18-2/63 30/36-1/63 90/18-1/63 30/18-3/63 30/54-1/63 30/18-5/63 30/90-1/63 30/18-7/63