Subtract 42/9 from 60/30
1st number: 2 0/30, 2nd number: 4 6/9
60/30 - 42/9 is -8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
60/30 = 60 × 3/30 × 3 = 180/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90 - Subtract the two like fractions:
180/90 - 420/90 = 180 - 420/90 = -240/90 - After reducing the fraction, the answer is -8/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/30-84/9 60/30-42/18 60/90-42/9 60/30-42/27 60/30-42/45 60/30-42/63