Add 45/20 and 5/4
1st number: 2 5/20, 2nd number: 1 1/4
45/20 + 5/4 is 7/2.
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,
5/4 = 5 × 5/4 × 5 = 25/20 - Add the two like fractions:
45/20 + 25/20 = 45 + 25/20 = 70/20 - 70/20 simplified gives 7/2
- So, 45/20 + 5/4 = 7/2
In mixed form: 31/2
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