Add 42/84 and 63/16
1st number: 42/84, 2nd number: 3 15/16
42/84 + 63/16 is 71/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
42/84 = 42 × 4/84 × 4 = 168/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
63/16 = 63 × 21/16 × 21 = 1323/336 - Add the two like fractions:
168/336 + 1323/336 = 168 + 1323/336 = 1491/336 - 1491/336 simplified gives 71/16
- So, 42/84 + 63/16 = 71/16
In mixed form: 47/16
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