Add 4/2 and 72/21
1st number: 2 0/2, 2nd number: 3 9/21
4/2 + 72/21 is 38/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
4/2 = 4 × 21/2 × 21 = 84/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
72/21 = 72 × 2/21 × 2 = 144/42 - Add the two like fractions:
84/42 + 144/42 = 84 + 144/42 = 228/42 - 228/42 simplified gives 38/7
- So, 4/2 + 72/21 = 38/7
In mixed form: 53/7
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