Add 56/5 and 72/84
1st number: 11 1/5, 2nd number: 72/84
56/5 + 72/84 is 422/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
56/5 = 56 × 84/5 × 84 = 4704/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
72/84 = 72 × 5/84 × 5 = 360/420 - Add the two like fractions:
4704/420 + 360/420 = 4704 + 360/420 = 5064/420 - 5064/420 simplified gives 422/35
- So, 56/5 + 72/84 = 422/35
In mixed form: 122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/10+72/84 56/15+72/84 56/25+72/84 56/35+72/84