Add 21/10 and 84/45
1st number: 2 1/10, 2nd number: 1 39/45
21/10 + 84/45 is 119/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
21/10 = 21 × 9/10 × 9 = 189/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
84/45 = 84 × 2/45 × 2 = 168/90 - Add the two like fractions:
189/90 + 168/90 = 189 + 168/90 = 357/90 - 357/90 simplified gives 119/30
- So, 21/10 + 84/45 = 119/30
In mixed form: 329/30
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