Add 81/90 and 32/40
81/90 + 32/40 is 17/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
81/90 = 81 × 4/90 × 4 = 324/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
32/40 = 32 × 9/40 × 9 = 288/360 - Add the two like fractions:
324/360 + 288/360 = 324 + 288/360 = 612/360 - 612/360 simplified gives 17/10
- So, 81/90 + 32/40 = 17/10
In mixed form: 17/10
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