Add 9/42 and 21/14
1st number: 9/42, 2nd number: 1 7/14
9/42 + 21/14 is 12/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 14 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
9/42 = 9 × 1/42 × 1 = 9/42 - Likewise, for the 2nd fraction, since 14 × 3 = 42,
21/14 = 21 × 3/14 × 3 = 63/42 - Add the two like fractions:
9/42 + 63/42 = 9 + 63/42 = 72/42 - 72/42 simplified gives 12/7
- So, 9/42 + 21/14 = 12/7
In mixed form: 15/7
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