Add 40/16 and 63/21
1st number: 2 8/16, 2nd number: 3 0/21
40/16 + 63/21 is 11/2.
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,
40/16 = 40 × 21/16 × 21 = 840/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
63/21 = 63 × 16/21 × 16 = 1008/336 - Add the two like fractions:
840/336 + 1008/336 = 840 + 1008/336 = 1848/336 - 1848/336 simplified gives 11/2
- So, 40/16 + 63/21 = 11/2
In mixed form: 51/2
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