Add 30/90 and 40/45
30/90 + 40/45 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 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 45 × 2 = 90,
40/45 = 40 × 2/45 × 2 = 80/90 - Add the two like fractions:
30/90 + 80/90 = 30 + 80/90 = 110/90 - 110/90 simplified gives 11/9
- So, 30/90 + 40/45 = 11/9
In mixed form: 12/9
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