Add 4/2 and 42/21
1st number: 2 0/2, 2nd number: 2 0/21
4/2 + 42/21 is 4/1.
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,
42/21 = 42 × 2/21 × 2 = 84/42 - Add the two like fractions:
84/42 + 84/42 = 84 + 84/42 = 168/42 - 168/42 simplified gives 4/1
- So, 4/2 + 42/21 = 4/1
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