Add 18/84 and 10/80
18/84 + 10/80 is 19/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
18/84 = 18 × 20/84 × 20 = 360/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
10/80 = 10 × 21/80 × 21 = 210/1680 - Add the two like fractions:
360/1680 + 210/1680 = 360 + 210/1680 = 570/1680 - 570/1680 simplified gives 19/56
- So, 18/84 + 10/80 = 19/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+10/80 18/84+20/80 54/84+10/80 18/84+30/80 90/84+10/80 18/84+50/80 18/84+70/80