Add 30/56 and 36/21
1st number: 30/56, 2nd number: 1 15/21
30/56 + 36/21 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
30/56 = 30 × 3/56 × 3 = 90/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
36/21 = 36 × 8/21 × 8 = 288/168 - Add the two like fractions:
90/168 + 288/168 = 90 + 288/168 = 378/168 - 378/168 simplified gives 9/4
- So, 30/56 + 36/21 = 9/4
In mixed form: 21/4
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