Add 72/49 and 45/70
1st number: 1 23/49, 2nd number: 45/70
72/49 + 45/70 is 207/98.
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,
72/49 = 72 × 10/49 × 10 = 720/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
45/70 = 45 × 7/70 × 7 = 315/490 - Add the two like fractions:
720/490 + 315/490 = 720 + 315/490 = 1035/490 - 1035/490 simplified gives 207/98
- So, 72/49 + 45/70 = 207/98
In mixed form: 211/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/49+90/70 72/98+45/70