Add 28/4 and 45/20
1st number: 7 0/4, 2nd number: 2 5/20
28/4 + 45/20 is 37/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
28/4 = 28 × 5/4 × 5 = 140/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
45/20 = 45 × 1/20 × 1 = 45/20 - Add the two like fractions:
140/20 + 45/20 = 140 + 45/20 = 185/20 - 185/20 simplified gives 37/4
- So, 28/4 + 45/20 = 37/4
In mixed form: 91/4
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