Add 63/16 and 42/21
1st number: 3 15/16, 2nd number: 2 0/21
63/16 + 42/21 is 95/16.
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,
63/16 = 63 × 21/16 × 21 = 1323/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
42/21 = 42 × 16/21 × 16 = 672/336 - Add the two like fractions:
1323/336 + 672/336 = 1323 + 672/336 = 1995/336 - 1995/336 simplified gives 95/16
- So, 63/16 + 42/21 = 95/16
In mixed form: 515/16
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