Add 84/15 and 45/56
1st number: 5 9/15, 2nd number: 45/56
84/15 + 45/56 is 1793/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
84/15 = 84 × 56/15 × 56 = 4704/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
45/56 = 45 × 15/56 × 15 = 675/840 - Add the two like fractions:
4704/840 + 675/840 = 4704 + 675/840 = 5379/840 - 5379/840 simplified gives 1793/280
- So, 84/15 + 45/56 = 1793/280
In mixed form: 6113/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+90/56 84/30+45/56 84/45+45/56 84/75+45/56