Add 18/8 and 72/15
1st number: 2 2/8, 2nd number: 4 12/15
18/8 + 72/15 is 141/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
18/8 = 18 × 15/8 × 15 = 270/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
72/15 = 72 × 8/15 × 8 = 576/120 - Add the two like fractions:
270/120 + 576/120 = 270 + 576/120 = 846/120 - 846/120 simplified gives 141/20
- So, 18/8 + 72/15 = 141/20
In mixed form: 71/20
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