Add 90/60 and 45/81
1st number: 1 30/60, 2nd number: 45/81
90/60 + 45/81 is 37/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 60 × 27 = 1620,
90/60 = 90 × 27/60 × 27 = 2430/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
45/81 = 45 × 20/81 × 20 = 900/1620 - Add the two like fractions:
2430/1620 + 900/1620 = 2430 + 900/1620 = 3330/1620 - 3330/1620 simplified gives 37/18
- So, 90/60 + 45/81 = 37/18
In mixed form: 21/18
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