Add 21/42 and 6/80
21/42 + 6/80 is 23/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 42 × 40 = 1680,
21/42 = 21 × 40/42 × 40 = 840/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
6/80 = 6 × 21/80 × 21 = 126/1680 - Add the two like fractions:
840/1680 + 126/1680 = 840 + 126/1680 = 966/1680 - 966/1680 simplified gives 23/40
- So, 21/42 + 6/80 = 23/40
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