Add 84/98 and 28/40
84/98 + 28/40 is 109/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
84/98 = 84 × 20/98 × 20 = 1680/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
28/40 = 28 × 49/40 × 49 = 1372/1960 - Add the two like fractions:
1680/1960 + 1372/1960 = 1680 + 1372/1960 = 3052/1960 - 3052/1960 simplified gives 109/70
- So, 84/98 + 28/40 = 109/70
In mixed form: 139/70
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