Add 42/81 and 90/98
42/81 + 90/98 is 1901/1323.
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,
42/81 = 42 × 98/81 × 98 = 4116/7938 - Likewise, for the 2nd fraction, since 98 × 81 = 7938,
90/98 = 90 × 81/98 × 81 = 7290/7938 - Add the two like fractions:
4116/7938 + 7290/7938 = 4116 + 7290/7938 = 11406/7938 - 11406/7938 simplified gives 1901/1323
- So, 42/81 + 90/98 = 1901/1323
In mixed form: 1578/1323
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