Add 80/84 and 75/54
1st number: 80/84, 2nd number: 1 21/54
80/84 + 75/54 is 295/126.
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,
80/84 = 80 × 9/84 × 9 = 720/756 - Likewise, for the 2nd fraction, since 54 × 14 = 756,
75/54 = 75 × 14/54 × 14 = 1050/756 - Add the two like fractions:
720/756 + 1050/756 = 720 + 1050/756 = 1770/756 - 1770/756 simplified gives 295/126
- So, 80/84 + 75/54 = 295/126
In mixed form: 243/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: