Add 54/8 and 21/4
1st number: 6 6/8, 2nd number: 5 1/4
54/8 + 21/4 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 4 is 8
Next, find the equivalent fraction of both fractional numbers with denominator 8 - For the 1st fraction, since 8 × 1 = 8,
54/8 = 54 × 1/8 × 1 = 54/8 - Likewise, for the 2nd fraction, since 4 × 2 = 8,
21/4 = 21 × 2/4 × 2 = 42/8 - Add the two like fractions:
54/8 + 42/8 = 54 + 42/8 = 96/8 - 96/8 simplified gives 12/1
- So, 54/8 + 21/4 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+42/4 54/16+21/4 54/8+21/8 54/8+63/4 54/24+21/4 54/8+21/12 54/40+21/4 54/8+21/20 54/56+21/4 54/8+21/28