Add 40/72 and 18/90
40/72 + 18/90 is 34/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
40/72 = 40 × 5/72 × 5 = 200/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
18/90 = 18 × 4/90 × 4 = 72/360 - Add the two like fractions:
200/360 + 72/360 = 200 + 72/360 = 272/360 - 272/360 simplified gives 34/45
- So, 40/72 + 18/90 = 34/45
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