Add 28/80 and 70/98
28/80 + 70/98 is 149/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 98 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
28/80 = 28 × 49/80 × 49 = 1372/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
70/98 = 70 × 40/98 × 40 = 2800/3920 - Add the two like fractions:
1372/3920 + 2800/3920 = 1372 + 2800/3920 = 4172/3920 - 4172/3920 simplified gives 149/140
- So, 28/80 + 70/98 = 149/140
In mixed form: 19/140
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