Add 21/8 and 30/48
1st number: 2 5/8, 2nd number: 30/48
21/8 + 30/48 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 48 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 8 × 6 = 48,
21/8 = 21 × 6/8 × 6 = 126/48 - Likewise, for the 2nd fraction, since 48 × 1 = 48,
30/48 = 30 × 1/48 × 1 = 30/48 - Add the two like fractions:
126/48 + 30/48 = 126 + 30/48 = 156/48 - 156/48 simplified gives 13/4
- So, 21/8 + 30/48 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+30/48 21/8+60/48 21/16+30/48 21/8+30/96 63/8+30/48 21/8+90/48 21/24+30/48 21/40+30/48 21/56+30/48