Subtract 42/30 from 50/27
1st number: 1 23/27, 2nd number: 1 12/30
50/27 - 42/30 is 61/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
50/27 = 50 × 10/27 × 10 = 500/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
42/30 = 42 × 9/30 × 9 = 378/270 - Subtract the two like fractions:
500/270 - 378/270 = 500 - 378/270 = 122/270 - After reducing the fraction, the answer is 61/135
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/27-84/30 50/54-42/30 50/27-42/60 50/81-42/30 50/27-42/90