Add 30/18 and 90/25
1st number: 1 12/18, 2nd number: 3 15/25
30/18 + 90/25 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
30/18 = 30 × 25/18 × 25 = 750/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
90/25 = 90 × 18/25 × 18 = 1620/450 - Add the two like fractions:
750/450 + 1620/450 = 750 + 1620/450 = 2370/450 - 2370/450 simplified gives 79/15
- So, 30/18 + 90/25 = 79/15
In mixed form: 54/15
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