Add 18/28 and 90/49
1st number: 18/28, 2nd number: 1 41/49
18/28 + 90/49 is 243/98.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
18/28 = 18 × 7/28 × 7 = 126/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
90/49 = 90 × 4/49 × 4 = 360/196 - Add the two like fractions:
126/196 + 360/196 = 126 + 360/196 = 486/196 - 486/196 simplified gives 243/98
- So, 18/28 + 90/49 = 243/98
In mixed form: 247/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+90/49 18/56+90/49 18/28+90/98 54/28+90/49 18/84+90/49 90/28+90/49