Add 72/9 and 42/15
1st number: 8 0/9, 2nd number: 2 12/15
72/9 + 42/15 is 54/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
72/9 = 72 × 5/9 × 5 = 360/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
42/15 = 42 × 3/15 × 3 = 126/45 - Add the two like fractions:
360/45 + 126/45 = 360 + 126/45 = 486/45 - 486/45 simplified gives 54/5
- So, 72/9 + 42/15 = 54/5
In mixed form: 104/5
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