Add 84/56 and 5/7
1st number: 1 28/56, 2nd number: 5/7
84/56 + 5/7 is 31/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
84/56 = 84 × 1/56 × 1 = 84/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
5/7 = 5 × 8/7 × 8 = 40/56 - Add the two like fractions:
84/56 + 40/56 = 84 + 40/56 = 124/56 - 124/56 simplified gives 31/14
- So, 84/56 + 5/7 = 31/14
In mixed form: 23/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+10/7 84/56+5/14 84/56+15/7 84/56+5/21 84/56+25/7 84/56+5/35 84/56+35/7 84/56+5/49