Add 1/80 and 21/42
1/80 + 21/42 is 41/80.
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,
1/80 = 1 × 21/80 × 21 = 21/1680 - Likewise, for the 2nd fraction, since 42 × 40 = 1680,
21/42 = 21 × 40/42 × 40 = 840/1680 - Add the two like fractions:
21/1680 + 840/1680 = 21 + 840/1680 = 861/1680 - 861/1680 simplified gives 41/80
- So, 1/80 + 21/42 = 41/80
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