Add 30/72 and 81/80
1st number: 30/72, 2nd number: 1 1/80
30/72 + 81/80 is 343/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
30/72 = 30 × 10/72 × 10 = 300/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
81/80 = 81 × 9/80 × 9 = 729/720 - Add the two like fractions:
300/720 + 729/720 = 300 + 729/720 = 1029/720 - 1029/720 simplified gives 343/240
- So, 30/72 + 81/80 = 343/240
In mixed form: 1103/240
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