Add 28/90 and 42/25
1st number: 28/90, 2nd number: 1 17/25
28/90 + 42/25 is 448/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
28/90 = 28 × 5/90 × 5 = 140/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
42/25 = 42 × 18/25 × 18 = 756/450 - Add the two like fractions:
140/450 + 756/450 = 140 + 756/450 = 896/450 - 896/450 simplified gives 448/225
- So, 28/90 + 42/25 = 448/225
In mixed form: 1223/225
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