Add 16/20 and 63/21
1st number: 16/20, 2nd number: 3 0/21
16/20 + 63/21 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 21 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
16/20 = 16 × 21/20 × 21 = 336/420 - Likewise, for the 2nd fraction, since 21 × 20 = 420,
63/21 = 63 × 20/21 × 20 = 1260/420 - Add the two like fractions:
336/420 + 1260/420 = 336 + 1260/420 = 1596/420 - 1596/420 simplified gives 19/5
- So, 16/20 + 63/21 = 19/5
In mixed form: 34/5
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