Add 3/14 and 21/45
3/14 + 21/45 is 143/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 14 × 45 = 630,
3/14 = 3 × 45/14 × 45 = 135/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
21/45 = 21 × 14/45 × 14 = 294/630 - Add the two like fractions:
135/630 + 294/630 = 135 + 294/630 = 429/630 - 429/630 simplified gives 143/210
- So, 3/14 + 21/45 = 143/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/14+21/45 3/14+42/45 3/28+21/45 3/14+21/90 9/14+21/45 3/14+63/45 3/42+21/45 15/14+21/45 3/70+21/45 21/14+21/45 3/98+21/45