Add 45/49 and 72/80
45/49 + 72/80 is 891/490.
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,
45/49 = 45 × 80/49 × 80 = 3600/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
72/80 = 72 × 49/80 × 49 = 3528/3920 - Add the two like fractions:
3600/3920 + 3528/3920 = 3600 + 3528/3920 = 7128/3920 - 7128/3920 simplified gives 891/490
- So, 45/49 + 72/80 = 891/490
In mixed form: 1401/490
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