Subtract 42/63 from 28/10
1st number: 2 8/10, 2nd number: 42/63
28/10 - 42/63 is 32/15.
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,
28/10 = 28 × 63/10 × 63 = 1764/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
42/63 = 42 × 10/63 × 10 = 420/630 - Subtract the two like fractions:
1764/630 - 420/630 = 1764 - 420/630 = 1344/630 - After reducing the fraction, the answer is 32/15
- In mixed form: 22/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10-42/63 28/10-84/63 28/20-42/63 84/10-42/63 28/30-42/63 28/50-42/63 28/70-42/63