Add 21/10 and 27/84
1st number: 2 1/10, 2nd number: 27/84
21/10 + 27/84 is 339/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
21/10 = 21 × 42/10 × 42 = 882/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
27/84 = 27 × 5/84 × 5 = 135/420 - Add the two like fractions:
882/420 + 135/420 = 882 + 135/420 = 1017/420 - 1017/420 simplified gives 339/140
- So, 21/10 + 27/84 = 339/140
In mixed form: 259/140
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