Subtract 28/30 from 63/2
1st number: 31 1/2, 2nd number: 28/30
63/2 - 28/30 is 917/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
63/2 = 63 × 15/2 × 15 = 945/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
28/30 = 28 × 1/30 × 1 = 28/30 - Subtract the two like fractions:
945/30 - 28/30 = 945 - 28/30 = 917/30 - In mixed form: 3017/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/2-56/30 63/4-28/30 63/2-28/60 63/2-84/30 63/6-28/30 63/2-28/90 63/10-28/30 63/14-28/30