Add 4/54 and 42/84
4/54 + 42/84 is 31/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 84 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 54 × 14 = 756,
4/54 = 4 × 14/54 × 14 = 56/756 - Likewise, for the 2nd fraction, since 84 × 9 = 756,
42/84 = 42 × 9/84 × 9 = 378/756 - Add the two like fractions:
56/756 + 378/756 = 56 + 378/756 = 434/756 - 434/756 simplified gives 31/54
- So, 4/54 + 42/84 = 31/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/54+42/84 12/54+42/84 20/54+42/84 28/54+42/84