Add 45/9 and 3/12
1st number: 5 0/9, 2nd number: 3/12
45/9 + 3/12 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
45/9 = 45 × 4/9 × 4 = 180/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
3/12 = 3 × 3/12 × 3 = 9/36 - Add the two like fractions:
180/36 + 9/36 = 180 + 9/36 = 189/36 - 189/36 simplified gives 21/4
- So, 45/9 + 3/12 = 21/4
In mixed form: 51/4
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