Add 72/30 and 42/90
1st number: 2 12/30, 2nd number: 42/90
72/30 + 42/90 is 43/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
72/30 = 72 × 3/30 × 3 = 216/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Add the two like fractions:
216/90 + 42/90 = 216 + 42/90 = 258/90 - 258/90 simplified gives 43/15
- So, 72/30 + 42/90 = 43/15
In mixed form: 213/15
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