Add 70/49 and 20/27
1st number: 1 21/49, 2nd number: 20/27
70/49 + 20/27 is 410/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323
Next, find the equivalent fraction of both fractional numbers with denominator 1323 - For the 1st fraction, since 49 × 27 = 1323,
70/49 = 70 × 27/49 × 27 = 1890/1323 - Likewise, for the 2nd fraction, since 27 × 49 = 1323,
20/27 = 20 × 49/27 × 49 = 980/1323 - Add the two like fractions:
1890/1323 + 980/1323 = 1890 + 980/1323 = 2870/1323 - 2870/1323 simplified gives 410/189
- So, 70/49 + 20/27 = 410/189
In mixed form: 232/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/49+40/27 70/98+20/27 70/49+20/54 70/49+60/27 70/49+20/81