Add 14/28 and 40/45
14/28 + 40/45 is 25/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
14/28 = 14 × 45/28 × 45 = 630/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
40/45 = 40 × 28/45 × 28 = 1120/1260 - Add the two like fractions:
630/1260 + 1120/1260 = 630 + 1120/1260 = 1750/1260 - 1750/1260 simplified gives 25/18
- So, 14/28 + 40/45 = 25/18
In mixed form: 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+80/45 14/56+40/45 14/28+40/90 42/28+40/45 14/84+40/45 70/28+40/45 98/28+40/45