Add 90/49 and 18/70
1st number: 1 41/49, 2nd number: 18/70
90/49 + 18/70 is 513/245.
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,
90/49 = 90 × 10/49 × 10 = 900/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
18/70 = 18 × 7/70 × 7 = 126/490 - Add the two like fractions:
900/490 + 126/490 = 900 + 126/490 = 1026/490 - 1026/490 simplified gives 513/245
- So, 90/49 + 18/70 = 513/245
In mixed form: 223/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49+36/70 90/98+18/70 90/49+54/70 90/49+90/70