Add 21/45 and 84/98
21/45 + 84/98 is 139/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 45 × 98 = 4410,
21/45 = 21 × 98/45 × 98 = 2058/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
84/98 = 84 × 45/98 × 45 = 3780/4410 - Add the two like fractions:
2058/4410 + 3780/4410 = 2058 + 3780/4410 = 5838/4410 - 5838/4410 simplified gives 139/105
- So, 21/45 + 84/98 = 139/105
In mixed form: 134/105
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