Add 1/80 and 9/21
1/80 + 9/21 is 247/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
1/80 = 1 × 21/80 × 21 = 21/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
9/21 = 9 × 80/21 × 80 = 720/1680 - Add the two like fractions:
21/1680 + 720/1680 = 21 + 720/1680 = 741/1680 - 741/1680 simplified gives 247/560
- So, 1/80 + 9/21 = 247/560
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