Add 6/21 and 6/45
6/21 + 6/45 is 44/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
6/21 = 6 × 15/21 × 15 = 90/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
6/45 = 6 × 7/45 × 7 = 42/315 - Add the two like fractions:
90/315 + 42/315 = 90 + 42/315 = 132/315 - 132/315 simplified gives 44/105
- So, 6/21 + 6/45 = 44/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+6/45 6/21+12/45 6/42+6/45 6/21+6/90 18/21+6/45 6/21+18/45 6/63+6/45 30/21+6/45 6/21+30/45 42/21+6/45 6/21+42/45