Add 45/12 and 84/56
1st number: 3 9/12, 2nd number: 1 28/56
45/12 + 84/56 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 12 × 14 = 168,
45/12 = 45 × 14/12 × 14 = 630/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
84/56 = 84 × 3/56 × 3 = 252/168 - Add the two like fractions:
630/168 + 252/168 = 630 + 252/168 = 882/168 - 882/168 simplified gives 21/4
- So, 45/12 + 84/56 = 21/4
In mixed form: 51/4
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