Add 70/98 and 54/80
70/98 + 54/80 is 389/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 98 × 40 = 3920,
70/98 = 70 × 40/98 × 40 = 2800/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
54/80 = 54 × 49/80 × 49 = 2646/3920 - Add the two like fractions:
2800/3920 + 2646/3920 = 2800 + 2646/3920 = 5446/3920 - 5446/3920 simplified gives 389/280
- So, 70/98 + 54/80 = 389/280
In mixed form: 1109/280
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