Add 18/15 and 42/25
1st number: 1 3/15, 2nd number: 1 17/25
18/15 + 42/25 is 72/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 25 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 15 × 5 = 75,
18/15 = 18 × 5/15 × 5 = 90/75 - Likewise, for the 2nd fraction, since 25 × 3 = 75,
42/25 = 42 × 3/25 × 3 = 126/75 - Add the two like fractions:
90/75 + 126/75 = 90 + 126/75 = 216/75 - 216/75 simplified gives 72/25
- So, 18/15 + 42/25 = 72/25
In mixed form: 222/25
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