Add 90/18 and 42/16
1st number: 5 0/18, 2nd number: 2 10/16
90/18 + 42/16 is 61/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
90/18 = 90 × 8/18 × 8 = 720/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
42/16 = 42 × 9/16 × 9 = 378/144 - Add the two like fractions:
720/144 + 378/144 = 720 + 378/144 = 1098/144 - 1098/144 simplified gives 61/8
- So, 90/18 + 42/16 = 61/8
In mixed form: 75/8
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