Add 9/49 and 70/80
9/49 + 70/80 is 415/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
9/49 = 9 × 80/49 × 80 = 720/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
70/80 = 70 × 49/80 × 49 = 3430/3920 - Add the two like fractions:
720/3920 + 3430/3920 = 720 + 3430/3920 = 4150/3920 - 4150/3920 simplified gives 415/392
- So, 9/49 + 70/80 = 415/392
In mixed form: 123/392
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