Add 81/36 and 70/80
1st number: 2 9/36, 2nd number: 70/80
81/36 + 70/80 is 25/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
81/36 = 81 × 20/36 × 20 = 1620/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
70/80 = 70 × 9/80 × 9 = 630/720 - Add the two like fractions:
1620/720 + 630/720 = 1620 + 630/720 = 2250/720 - 2250/720 simplified gives 25/8
- So, 81/36 + 70/80 = 25/8
In mixed form: 31/8
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