Add 84/4 and 30/42
1st number: 21 0/4, 2nd number: 30/42
84/4 + 30/42 is 152/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
84/4 = 84 × 21/4 × 21 = 1764/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
30/42 = 30 × 2/42 × 2 = 60/84 - Add the two like fractions:
1764/84 + 60/84 = 1764 + 60/84 = 1824/84 - 1824/84 simplified gives 152/7
- So, 84/4 + 30/42 = 152/7
In mixed form: 215/7
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