Subtract 2/42 from 30/60
30/60 - 2/42 is 19/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
30/60 = 30 × 7/60 × 7 = 210/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
2/42 = 2 × 10/42 × 10 = 20/420 - Subtract the two like fractions:
210/420 - 20/420 = 210 - 20/420 = 190/420 - After reducing the fraction, the answer is 19/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60-4/42 30/60-2/84 90/60-2/42 30/60-6/42 30/60-10/42 30/60-14/42