Add 18/81 and 42/98
18/81 + 42/98 is 41/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 98 is 7938
Next, find the equivalent fraction of both fractional numbers with denominator 7938 - For the 1st fraction, since 81 × 98 = 7938,
18/81 = 18 × 98/81 × 98 = 1764/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
42/98 = 42 × 81/98 × 81 = 3402/7938 - Add the two like fractions:
1764/7938 + 3402/7938 = 1764 + 3402/7938 = 5166/7938 - 5166/7938 simplified gives 41/63
- So, 18/81 + 42/98 = 41/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/81+42/98 18/81+84/98 54/81+42/98 90/81+42/98