Subtract 48/35 from 30/42
1st number: 30/42, 2nd number: 1 13/35
30/42 - 48/35 is -23/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
30/42 = 30 × 5/42 × 5 = 150/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
48/35 = 48 × 6/35 × 6 = 288/210 - Subtract the two like fractions:
150/210 - 288/210 = 150 - 288/210 = -138/210 - After reducing the fraction, the answer is -23/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42-48/35 30/42-96/35 30/84-48/35 30/42-48/70 90/42-48/35