Add 1/21 and 12/14
1/21 + 12/14 is 19/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
1/21 = 1 × 2/21 × 2 = 2/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
12/14 = 12 × 3/14 × 3 = 36/42 - Add the two like fractions:
2/42 + 36/42 = 2 + 36/42 = 38/42 - 38/42 simplified gives 19/21
- So, 1/21 + 12/14 = 19/21
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