Subtract 10/5 from 48/42
1st number: 1 6/42, 2nd number: 2 0/5
48/42 - 10/5 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
48/42 = 48 × 5/42 × 5 = 240/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
10/5 = 10 × 42/5 × 42 = 420/210 - Subtract the two like fractions:
240/210 - 420/210 = 240 - 420/210 = -180/210 - After reducing the fraction, the answer is -6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/42-10/5 48/42-20/5 48/84-10/5 48/42-30/5 48/42-10/15 48/42-50/5 48/42-10/25 48/42-70/5 48/42-10/35