Add 72/42 and 36/9
1st number: 1 30/42, 2nd number: 4 0/9
72/42 + 36/9 is 40/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
72/42 = 72 × 3/42 × 3 = 216/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
36/9 = 36 × 14/9 × 14 = 504/126 - Add the two like fractions:
216/126 + 504/126 = 216 + 504/126 = 720/126 - 720/126 simplified gives 40/7
- So, 72/42 + 36/9 = 40/7
In mixed form: 55/7
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