Add 21/2 and 84/7
1st number: 10 1/2, 2nd number: 12 0/7
21/2 + 84/7 is 45/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
21/2 = 21 × 7/2 × 7 = 147/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
84/7 = 84 × 2/7 × 2 = 168/14 - Add the two like fractions:
147/14 + 168/14 = 147 + 168/14 = 315/14 - 315/14 simplified gives 45/2
- So, 21/2 + 84/7 = 45/2
In mixed form: 221/2
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