Add 12/5 and 21/14
1st number: 2 2/5, 2nd number: 1 7/14
12/5 + 21/14 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
12/5 = 12 × 14/5 × 14 = 168/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
21/14 = 21 × 5/14 × 5 = 105/70 - Add the two like fractions:
168/70 + 105/70 = 168 + 105/70 = 273/70 - 273/70 simplified gives 39/10
- So, 12/5 + 21/14 = 39/10
In mixed form: 39/10
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