Add 30/90 and 12/10
1st number: 30/90, 2nd number: 1 2/10
30/90 + 12/10 is 23/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
30/90 = 30 × 1/90 × 1 = 30/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
12/10 = 12 × 9/10 × 9 = 108/90 - Add the two like fractions:
30/90 + 108/90 = 30 + 108/90 = 138/90 - 138/90 simplified gives 23/15
- So, 30/90 + 12/10 = 23/15
In mixed form: 18/15
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