Add 70/42 and 15/49
1st number: 1 28/42, 2nd number: 15/49
70/42 + 15/49 is 290/147.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
70/42 = 70 × 7/42 × 7 = 490/294 - Likewise, for the 2nd fraction, since 49 × 6 = 294,
15/49 = 15 × 6/49 × 6 = 90/294 - Add the two like fractions:
490/294 + 90/294 = 490 + 90/294 = 580/294 - 580/294 simplified gives 290/147
- So, 70/42 + 15/49 = 290/147
In mixed form: 1143/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+30/49 70/84+15/49 70/42+15/98 70/42+45/49 70/42+75/49