Add 30/42 and 20/4
1st number: 30/42, 2nd number: 5 0/4
30/42 + 20/4 is 40/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
30/42 = 30 × 2/42 × 2 = 60/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
20/4 = 20 × 21/4 × 21 = 420/84 - Add the two like fractions:
60/84 + 420/84 = 60 + 420/84 = 480/84 - 480/84 simplified gives 40/7
- So, 30/42 + 20/4 = 40/7
In mixed form: 55/7
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