Add 21/5 and 12/16
1st number: 4 1/5, 2nd number: 12/16
21/5 + 12/16 is 99/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
21/5 = 21 × 16/5 × 16 = 336/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
12/16 = 12 × 5/16 × 5 = 60/80 - Add the two like fractions:
336/80 + 60/80 = 336 + 60/80 = 396/80 - 396/80 simplified gives 99/20
- So, 21/5 + 12/16 = 99/20
In mixed form: 419/20
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