Add 18/45 and 3/84
18/45 + 3/84 is 61/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
18/45 = 18 × 28/45 × 28 = 504/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
3/84 = 3 × 15/84 × 15 = 45/1260 - Add the two like fractions:
504/1260 + 45/1260 = 504 + 45/1260 = 549/1260 - 549/1260 simplified gives 61/140
- So, 18/45 + 3/84 = 61/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+3/84 18/45+6/84 18/90+3/84 54/45+3/84 18/45+9/84 90/45+3/84 18/45+15/84 18/45+21/84