Subtract 21/36 from 54/30
1st number: 1 24/30, 2nd number: 21/36
54/30 - 21/36 is 73/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
54/30 = 54 × 6/30 × 6 = 324/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
21/36 = 21 × 5/36 × 5 = 105/180 - Subtract the two like fractions:
324/180 - 105/180 = 324 - 105/180 = 219/180 - After reducing the fraction, the answer is 73/60
- In mixed form: 113/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30-42/36 54/60-21/36 54/30-21/72 54/30-63/36 54/90-21/36