Add 28/8 and 90/18
1st number: 3 4/8, 2nd number: 5 0/18
28/8 + 90/18 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
28/8 = 28 × 9/8 × 9 = 252/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
90/18 = 90 × 4/18 × 4 = 360/72 - Add the two like fractions:
252/72 + 360/72 = 252 + 360/72 = 612/72 - 612/72 simplified gives 17/2
- So, 28/8 + 90/18 = 17/2
In mixed form: 81/2
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