Add 28/42 and 14/45
28/42 + 14/45 is 44/45.
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,
28/42 = 28 × 15/42 × 15 = 420/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
14/45 = 14 × 14/45 × 14 = 196/630 - Add the two like fractions:
420/630 + 196/630 = 420 + 196/630 = 616/630 - 616/630 simplified gives 44/45
- So, 28/42 + 14/45 = 44/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+14/45 28/42+28/45 28/84+14/45 28/42+14/90 84/42+14/45 28/42+42/45 28/42+70/45 28/42+98/45