Add 2/45 and 7/42
2/45 + 7/42 is 19/90.
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,
2/45 = 2 × 14/45 × 14 = 28/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
7/42 = 7 × 15/42 × 15 = 105/630 - Add the two like fractions:
28/630 + 105/630 = 28 + 105/630 = 133/630 - 133/630 simplified gives 19/90
- So, 2/45 + 7/42 = 19/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45+7/42 2/45+14/42 2/90+7/42 2/45+7/84 6/45+7/42 2/45+21/42 10/45+7/42 2/45+35/42 14/45+7/42 2/45+49/42