Add 18/84 and 10/90
18/84 + 10/90 is 41/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
18/84 = 18 × 15/84 × 15 = 270/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
10/90 = 10 × 14/90 × 14 = 140/1260 - Add the two like fractions:
270/1260 + 140/1260 = 270 + 140/1260 = 410/1260 - 410/1260 simplified gives 41/126
- So, 18/84 + 10/90 = 41/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84+10/90 18/84+20/90 54/84+10/90 18/84+30/90 90/84+10/90 18/84+50/90 18/84+70/90