Add 20/90 and 42/15
1st number: 20/90, 2nd number: 2 12/15
20/90 + 42/15 is 136/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
42/15 = 42 × 6/15 × 6 = 252/90 - Add the two like fractions:
20/90 + 252/90 = 20 + 252/90 = 272/90 - 272/90 simplified gives 136/45
- So, 20/90 + 42/15 = 136/45
In mixed form: 31/45
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