Add 72/18 and 81/10
1st number: 4 0/18, 2nd number: 8 1/10
72/18 + 81/10 is 121/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
72/18 = 72 × 5/18 × 5 = 360/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
81/10 = 81 × 9/10 × 9 = 729/90 - Add the two like fractions:
360/90 + 729/90 = 360 + 729/90 = 1089/90 - 1089/90 simplified gives 121/10
- So, 72/18 + 81/10 = 121/10
In mixed form: 121/10
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