Add 8/40 and 81/90
8/40 + 81/90 is 11/10.
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,
8/40 = 8 × 9/40 × 9 = 72/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
81/90 = 81 × 4/90 × 4 = 324/360 - Add the two like fractions:
72/360 + 324/360 = 72 + 324/360 = 396/360 - 396/360 simplified gives 11/10
- So, 8/40 + 81/90 = 11/10
In mixed form: 11/10
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