Subtract 42/10 from 24/27
1st number: 24/27, 2nd number: 4 2/10
24/27 - 42/10 is -149/45.
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,
24/27 = 24 × 10/27 × 10 = 240/270 - Likewise, for the 2nd fraction, since 10 × 27 = 270,
42/10 = 42 × 27/10 × 27 = 1134/270 - Subtract the two like fractions:
240/270 - 1134/270 = 240 - 1134/270 = -894/270 - After reducing the fraction, the answer is -149/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/27-42/10 24/27-84/10 24/54-42/10 24/27-42/20 72/27-42/10 24/81-42/10 24/27-42/30 24/27-42/50 24/27-42/70