Subtract 48/42 from 48/15
1st number: 3 3/15, 2nd number: 1 6/42
48/15 - 48/42 is 72/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
48/15 = 48 × 14/15 × 14 = 672/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
48/42 = 48 × 5/42 × 5 = 240/210 - Subtract the two like fractions:
672/210 - 240/210 = 672 - 240/210 = 432/210 - After reducing the fraction, the answer is 72/35
- In mixed form: 22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/15-48/42 48/15-96/42 48/30-48/42 48/15-48/84 48/45-48/42 48/75-48/42