Add 84/21 and 15/56
1st number: 4 0/21, 2nd number: 15/56
84/21 + 15/56 is 239/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
84/21 = 84 × 8/21 × 8 = 672/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
15/56 = 15 × 3/56 × 3 = 45/168 - Add the two like fractions:
672/168 + 45/168 = 672 + 45/168 = 717/168 - 717/168 simplified gives 239/56
- So, 84/21 + 15/56 = 239/56
In mixed form: 415/56
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