Add 45/5 and 72/20
1st number: 9 0/5, 2nd number: 3 12/20
45/5 + 72/20 is 63/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 5 × 4 = 20,
45/5 = 45 × 4/5 × 4 = 180/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
72/20 = 72 × 1/20 × 1 = 72/20 - Add the two like fractions:
180/20 + 72/20 = 180 + 72/20 = 252/20 - 252/20 simplified gives 63/5
- So, 45/5 + 72/20 = 63/5
In mixed form: 123/5
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