Add 54/8 and 42/4
1st number: 6 6/8, 2nd number: 10 2/4
54/8 + 42/4 is 69/4.
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,
42/4 = 42 × 2/4 × 2 = 84/8 - Add the two like fractions:
54/8 + 84/8 = 54 + 84/8 = 138/8 - 138/8 simplified gives 69/4
- So, 54/8 + 42/4 = 69/4
In mixed form: 171/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/8+84/4 54/16+42/4 54/8+42/8 54/24+42/4 54/8+42/12 54/40+42/4 54/8+42/20 54/56+42/4 54/8+42/28