Subtract 48/42 from 45/5
1st number: 9 0/5, 2nd number: 1 6/42
45/5 - 48/42 is 55/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
45/5 = 45 × 42/5 × 42 = 1890/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
48/42 = 48 × 5/42 × 5 = 240/210 - Subtract the two like fractions:
1890/210 - 240/210 = 1890 - 240/210 = 1650/210 - After reducing the fraction, the answer is 55/7
- In mixed form: 76/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/5-48/42 45/5-96/42 45/10-48/42 45/5-48/84 45/15-48/42 45/25-48/42 45/35-48/42