Add 14/42 and 28/45
14/42 + 28/45 is 43/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
14/42 = 14 × 15/42 × 15 = 210/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
28/45 = 28 × 14/45 × 14 = 392/630 - Add the two like fractions:
210/630 + 392/630 = 210 + 392/630 = 602/630 - 602/630 simplified gives 43/45
- So, 14/42 + 28/45 = 43/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/42+28/45 14/42+56/45 14/84+28/45 14/42+28/90 14/42+84/45 70/42+28/45 98/42+28/45