Add 15/98 and 81/90
15/98 + 81/90 is 258/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
15/98 = 15 × 45/98 × 45 = 675/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
81/90 = 81 × 49/90 × 49 = 3969/4410 - Add the two like fractions:
675/4410 + 3969/4410 = 675 + 3969/4410 = 4644/4410 - 4644/4410 simplified gives 258/245
- So, 15/98 + 81/90 = 258/245
In mixed form: 113/245
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