Add 72/16 and 84/42
1st number: 4 8/16, 2nd number: 2 0/42
72/16 + 84/42 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
72/16 = 72 × 21/16 × 21 = 1512/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
84/42 = 84 × 8/42 × 8 = 672/336 - Add the two like fractions:
1512/336 + 672/336 = 1512 + 672/336 = 2184/336 - 2184/336 simplified gives 13/2
- So, 72/16 + 84/42 = 13/2
In mixed form: 61/2
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