Add 5/80 and 21/42
5/80 + 21/42 is 9/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
5/80 = 5 × 21/80 × 21 = 105/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
21/42 = 21 × 40/42 × 40 = 840/1680 - Add the two like fractions:
105/1680 + 840/1680 = 105 + 840/1680 = 945/1680 - 945/1680 simplified gives 9/16
- So, 5/80 + 21/42 = 9/16
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