Subtract 30/50 from 42/27
1st number: 1 15/27, 2nd number: 30/50
42/27 - 30/50 is 43/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 50 is 1350
Next, find the equivalent fraction of both fractional numbers with denominator 1350 - For the 1st fraction, since 27 × 50 = 1350,
42/27 = 42 × 50/27 × 50 = 2100/1350 - Likewise, for the 2nd fraction, since 50 × 27 = 1350,
30/50 = 30 × 27/50 × 27 = 810/1350 - Subtract the two like fractions:
2100/1350 - 810/1350 = 2100 - 810/1350 = 1290/1350 - After reducing the fraction, the answer is 43/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/27-30/50 42/27-60/50 42/54-30/50 42/27-90/50 42/81-30/50