Add 18/40 and 6/90
18/40 + 6/90 is 31/60.
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,
18/40 = 18 × 9/40 × 9 = 162/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
6/90 = 6 × 4/90 × 4 = 24/360 - Add the two like fractions:
162/360 + 24/360 = 162 + 24/360 = 186/360 - 186/360 simplified gives 31/60
- So, 18/40 + 6/90 = 31/60
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