Add 4/84 and 42/54
4/84 + 42/54 is 52/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 54 is 756
Next, find the equivalent fraction of both fractional numbers with denominator 756 - For the 1st fraction, since 84 × 9 = 756,
4/84 = 4 × 9/84 × 9 = 36/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
42/54 = 42 × 14/54 × 14 = 588/756 - Add the two like fractions:
36/756 + 588/756 = 36 + 588/756 = 624/756 - 624/756 simplified gives 52/63
- So, 4/84 + 42/54 = 52/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84+42/54 4/84+84/54 12/84+42/54 20/84+42/54 28/84+42/54