Add 20/16 and 63/21
1st number: 1 4/16, 2nd number: 3 0/21
20/16 + 63/21 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
20/16 = 20 × 21/16 × 21 = 420/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
63/21 = 63 × 16/21 × 16 = 1008/336 - Add the two like fractions:
420/336 + 1008/336 = 420 + 1008/336 = 1428/336 - 1428/336 simplified gives 17/4
- So, 20/16 + 63/21 = 17/4
In mixed form: 41/4
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