Add 21/10 and 42/16
1st number: 2 1/10, 2nd number: 2 10/16
21/10 + 42/16 is 189/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 10 × 8 = 80,
21/10 = 21 × 8/10 × 8 = 168/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
42/16 = 42 × 5/16 × 5 = 210/80 - Add the two like fractions:
168/80 + 210/80 = 168 + 210/80 = 378/80 - 378/80 simplified gives 189/40
- So, 21/10 + 42/16 = 189/40
In mixed form: 429/40
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