Add 72/3 and 45/20
1st number: 24 0/3, 2nd number: 2 5/20
72/3 + 45/20 is 105/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
72/3 = 72 × 20/3 × 20 = 1440/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
45/20 = 45 × 3/20 × 3 = 135/60 - Add the two like fractions:
1440/60 + 135/60 = 1440 + 135/60 = 1575/60 - 1575/60 simplified gives 105/4
- So, 72/3 + 45/20 = 105/4
In mixed form: 261/4
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