Subtract 60/30 from 4/42
1st number: 4/42, 2nd number: 2 0/30
4/42 - 60/30 is -40/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
4/42 = 4 × 5/42 × 5 = 20/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
60/30 = 60 × 7/30 × 7 = 420/210 - Subtract the two like fractions:
20/210 - 420/210 = 20 - 420/210 = -400/210 - After reducing the fraction, the answer is -40/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/42-60/30 4/84-60/30 12/42-60/30 4/42-60/90 20/42-60/30 28/42-60/30