Add 9/45 and 14/42
9/45 + 14/42 is 8/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
9/45 = 9 × 14/45 × 14 = 126/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
14/42 = 14 × 15/42 × 15 = 210/630 - Add the two like fractions:
126/630 + 210/630 = 126 + 210/630 = 336/630 - 336/630 simplified gives 8/15
- So, 9/45 + 14/42 = 8/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45+14/42 9/45+28/42 9/90+14/42 9/45+14/84 27/45+14/42 9/45+70/42 63/45+14/42 9/45+98/42