Add 20/90 and 28/15
1st number: 20/90, 2nd number: 1 13/15
20/90 + 28/15 is 94/45.
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,
28/15 = 28 × 6/15 × 6 = 168/90 - Add the two like fractions:
20/90 + 168/90 = 20 + 168/90 = 188/90 - 188/90 simplified gives 94/45
- So, 20/90 + 28/15 = 94/45
In mixed form: 24/45
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