Add 6/45 and 2/21
6/45 + 2/21 is 8/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 21 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
6/45 = 6 × 7/45 × 7 = 42/315 - Likewise, for the 2nd fraction, since 21 × 15 = 315,
2/21 = 2 × 15/21 × 15 = 30/315 - Add the two like fractions:
42/315 + 30/315 = 42 + 30/315 = 72/315 - 72/315 simplified gives 8/35
- So, 6/45 + 2/21 = 8/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/45+2/21 6/45+4/21 6/90+2/21 6/45+2/42 18/45+2/21 6/45+6/21 6/45+2/63 30/45+2/21 6/45+10/21 42/45+2/21 6/45+14/21