Subtract 30/63 from 18/10
1st number: 1 8/10, 2nd number: 30/63
18/10 - 30/63 is 139/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
18/10 = 18 × 63/10 × 63 = 1134/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
30/63 = 30 × 10/63 × 10 = 300/630 - Subtract the two like fractions:
1134/630 - 300/630 = 1134 - 300/630 = 834/630 - After reducing the fraction, the answer is 139/105
- In mixed form: 134/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10-30/63 18/10-60/63 18/20-30/63 54/10-30/63 18/10-90/63 18/30-30/63 90/10-30/63 18/50-30/63 18/70-30/63