Add 70/49 and 35/45
1st number: 1 21/49, 2nd number: 35/45
70/49 + 35/45 is 139/63.
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,
70/49 = 70 × 45/49 × 45 = 3150/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
35/45 = 35 × 49/45 × 49 = 1715/2205 - Add the two like fractions:
3150/2205 + 1715/2205 = 3150 + 1715/2205 = 4865/2205 - 4865/2205 simplified gives 139/63
- So, 70/49 + 35/45 = 139/63
In mixed form: 213/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/49+70/45 70/98+35/45 70/49+35/90