Add 72/60 and 45/9
1st number: 1 12/60, 2nd number: 5 0/9
72/60 + 45/9 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
72/60 = 72 × 3/60 × 3 = 216/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
45/9 = 45 × 20/9 × 20 = 900/180 - Add the two like fractions:
216/180 + 900/180 = 216 + 900/180 = 1116/180 - 1116/180 simplified gives 31/5
- So, 72/60 + 45/9 = 31/5
In mixed form: 61/5
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