Add 12/49 and 21/45
12/49 + 21/45 is 523/735.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
12/49 = 12 × 45/49 × 45 = 540/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
21/45 = 21 × 49/45 × 49 = 1029/2205 - Add the two like fractions:
540/2205 + 1029/2205 = 540 + 1029/2205 = 1569/2205 - 1569/2205 simplified gives 523/735
- So, 12/49 + 21/45 = 523/735
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49+21/45 12/49+42/45 12/98+21/45 12/49+21/90 36/49+21/45 12/49+63/45 60/49+21/45 84/49+21/45