Add 40/42 and 84/16
1st number: 40/42, 2nd number: 5 4/16
40/42 + 84/16 is 521/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
40/42 = 40 × 8/42 × 8 = 320/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
84/16 = 84 × 21/16 × 21 = 1764/336 - Add the two like fractions:
320/336 + 1764/336 = 320 + 1764/336 = 2084/336 - 2084/336 simplified gives 521/84
- So, 40/42 + 84/16 = 521/84
In mixed form: 617/84
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