Add 30/4 and 9/42
1st number: 7 2/4, 2nd number: 9/42
30/4 + 9/42 is 54/7.
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,
30/4 = 30 × 21/4 × 21 = 630/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Add the two like fractions:
630/84 + 18/84 = 630 + 18/84 = 648/84 - 648/84 simplified gives 54/7
- So, 30/4 + 9/42 = 54/7
In mixed form: 75/7
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