Add 60/40 and 81/90
1st number: 1 20/40, 2nd number: 81/90
60/40 + 81/90 is 12/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
60/40 = 60 × 9/40 × 9 = 540/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
81/90 = 81 × 4/90 × 4 = 324/360 - Add the two like fractions:
540/360 + 324/360 = 540 + 324/360 = 864/360 - 864/360 simplified gives 12/5
- So, 60/40 + 81/90 = 12/5
In mixed form: 22/5
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