Add 30/49 and 84/90
30/49 + 84/90 is 1136/735.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
30/49 = 30 × 90/49 × 90 = 2700/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
84/90 = 84 × 49/90 × 49 = 4116/4410 - Add the two like fractions:
2700/4410 + 4116/4410 = 2700 + 4116/4410 = 6816/4410 - 6816/4410 simplified gives 1136/735
- So, 30/49 + 84/90 = 1136/735
In mixed form: 1401/735
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49+84/90 30/98+84/90 90/49+84/90