Add 45/20 and 12/4
1st number: 2 5/20, 2nd number: 3 0/4
45/20 + 12/4 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
12/4 = 12 × 5/4 × 5 = 60/20 - Add the two like fractions:
45/20 + 60/20 = 45 + 60/20 = 105/20 - 105/20 simplified gives 21/4
- So, 45/20 + 12/4 = 21/4
In mixed form: 51/4
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