Add 84/56 and 15/45
1st number: 1 28/56, 2nd number: 15/45
84/56 + 15/45 is 11/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
84/56 = 84 × 45/56 × 45 = 3780/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
15/45 = 15 × 56/45 × 56 = 840/2520 - Add the two like fractions:
3780/2520 + 840/2520 = 3780 + 840/2520 = 4620/2520 - 4620/2520 simplified gives 11/6
- So, 84/56 + 15/45 = 11/6
In mixed form: 15/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+30/45 84/56+15/90 84/56+75/45