Add 9/10 and 20/45
9/10 + 20/45 is 121/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
9/10 = 9 × 9/10 × 9 = 81/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
81/90 + 40/90 = 81 + 40/90 = 121/90 - So, 9/10 + 20/45 = 121/90
In mixed form: 131/90
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