Add 9/45 and 6/42
9/45 + 6/42 is 12/35.
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,
6/42 = 6 × 15/42 × 15 = 90/630 - Add the two like fractions:
126/630 + 90/630 = 126 + 90/630 = 216/630 - 216/630 simplified gives 12/35
- So, 9/45 + 6/42 = 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45+6/42 9/45+12/42 9/90+6/42 9/45+6/84 27/45+6/42 9/45+18/42 9/45+30/42 63/45+6/42