Add 42/21 and 28/49
1st number: 2 0/21, 2nd number: 28/49
42/21 + 28/49 is 18/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 49 is 147
Next, find the equivalent fraction of both fractional numbers with denominator 147 - For the 1st fraction, since 21 × 7 = 147,
42/21 = 42 × 7/21 × 7 = 294/147 - Likewise, for the 2nd fraction, since 49 × 3 = 147,
28/49 = 28 × 3/49 × 3 = 84/147 - Add the two like fractions:
294/147 + 84/147 = 294 + 84/147 = 378/147 - 378/147 simplified gives 18/7
- So, 42/21 + 28/49 = 18/7
In mixed form: 24/7
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