Subtract 9/10 from 42/27
1st number: 1 15/27, 2nd number: 9/10
42/27 - 9/10 is 59/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 10 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 27 × 10 = 270,
42/27 = 42 × 10/27 × 10 = 420/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
9/10 = 9 × 27/10 × 27 = 243/270 - Subtract the two like fractions:
420/270 - 243/270 = 420 - 243/270 = 177/270 - After reducing the fraction, the answer is 59/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27-9/10 42/27-18/10 42/54-9/10 42/27-9/20 42/27-27/10 42/81-9/10 42/27-9/30 42/27-45/10 42/27-9/50 42/27-63/10 42/27-9/70