Add 12/49 and 15/70
12/49 + 15/70 is 45/98.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
12/49 = 12 × 10/49 × 10 = 120/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
15/70 = 15 × 7/70 × 7 = 105/490 - Add the two like fractions:
120/490 + 105/490 = 120 + 105/490 = 225/490 - 225/490 simplified gives 45/98
- So, 12/49 + 15/70 = 45/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49+15/70 12/49+30/70 12/98+15/70 36/49+15/70 12/49+45/70 60/49+15/70 12/49+75/70 84/49+15/70