Add 15/49 and 18/70
15/49 + 18/70 is 138/245.
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,
15/49 = 15 × 10/49 × 10 = 150/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
18/70 = 18 × 7/70 × 7 = 126/490 - Add the two like fractions:
150/490 + 126/490 = 150 + 126/490 = 276/490 - 276/490 simplified gives 138/245
- So, 15/49 + 18/70 = 138/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/49+18/70 15/49+36/70 15/98+18/70 45/49+18/70 15/49+54/70 75/49+18/70 15/49+90/70