Add 90/30 and 72/15
1st number: 3 0/30, 2nd number: 4 12/15
90/30 + 72/15 is 39/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
90/30 = 90 × 1/30 × 1 = 90/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
72/15 = 72 × 2/15 × 2 = 144/30 - Add the two like fractions:
90/30 + 144/30 = 90 + 144/30 = 234/30 - 234/30 simplified gives 39/5
- So, 90/30 + 72/15 = 39/5
In mixed form: 74/5
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