Add 45/4 and 72/12
1st number: 11 1/4, 2nd number: 6 0/12
45/4 + 72/12 is 69/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
45/4 = 45 × 3/4 × 3 = 135/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
72/12 = 72 × 1/12 × 1 = 72/12 - Add the two like fractions:
135/12 + 72/12 = 135 + 72/12 = 207/12 - 207/12 simplified gives 69/4
- So, 45/4 + 72/12 = 69/4
In mixed form: 171/4
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