Add 72/12 and 18/90
1st number: 6 0/12, 2nd number: 18/90
72/12 + 18/90 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
72/12 = 72 × 15/12 × 15 = 1080/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
18/90 = 18 × 2/90 × 2 = 36/180 - Add the two like fractions:
1080/180 + 36/180 = 1080 + 36/180 = 1116/180 - 1116/180 simplified gives 31/5
- So, 72/12 + 18/90 = 31/5
In mixed form: 61/5
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