Add 42/90 and 81/30
1st number: 42/90, 2nd number: 2 21/30
42/90 + 81/30 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
81/30 = 81 × 3/30 × 3 = 243/90 - Add the two like fractions:
42/90 + 243/90 = 42 + 243/90 = 285/90 - 285/90 simplified gives 19/6
- So, 42/90 + 81/30 = 19/6
In mixed form: 31/6
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