Add 18/45 and 5/40
18/45 + 5/40 is 21/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
18/45 = 18 × 8/45 × 8 = 144/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
5/40 = 5 × 9/40 × 9 = 45/360 - Add the two like fractions:
144/360 + 45/360 = 144 + 45/360 = 189/360 - 189/360 simplified gives 21/40
- So, 18/45 + 5/40 = 21/40
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