Add 7/49 and 20/80
7/49 + 20/80 is 11/28.
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,
7/49 = 7 × 80/49 × 80 = 560/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
20/80 = 20 × 49/80 × 49 = 980/3920 - Add the two like fractions:
560/3920 + 980/3920 = 560 + 980/3920 = 1540/3920 - 1540/3920 simplified gives 11/28
- So, 7/49 + 20/80 = 11/28
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