Add 70/42 and 35/27
1st number: 1 28/42, 2nd number: 1 8/27
70/42 + 35/27 is 80/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 27 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
70/42 = 70 × 9/42 × 9 = 630/378 - Likewise, for the 2nd fraction, since 27 × 14 = 378,
35/27 = 35 × 14/27 × 14 = 490/378 - Add the two like fractions:
630/378 + 490/378 = 630 + 490/378 = 1120/378 - 1120/378 simplified gives 80/27
- So, 70/42 + 35/27 = 80/27
In mixed form: 226/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+70/27 70/84+35/27 70/42+35/54 70/42+35/81