Add 3/45 and 3/42
3/45 + 3/42 is 29/210.
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,
3/45 = 3 × 14/45 × 14 = 42/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
3/42 = 3 × 15/42 × 15 = 45/630 - Add the two like fractions:
42/630 + 45/630 = 42 + 45/630 = 87/630 - 87/630 simplified gives 29/210
- So, 3/45 + 3/42 = 29/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45+3/42 3/45+6/42 3/90+3/42 3/45+3/84 9/45+3/42 3/45+9/42 15/45+3/42 3/45+15/42 21/45+3/42 3/45+21/42