Add 72/4 and 12/90
1st number: 18 0/4, 2nd number: 12/90
72/4 + 12/90 is 272/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
72/4 = 72 × 45/4 × 45 = 3240/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
12/90 = 12 × 2/90 × 2 = 24/180 - Add the two like fractions:
3240/180 + 24/180 = 3240 + 24/180 = 3264/180 - 3264/180 simplified gives 272/15
- So, 72/4 + 12/90 = 272/15
In mixed form: 182/15
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