Add 15/90 and 18/40
15/90 + 18/40 is 37/60.
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,
15/90 = 15 × 4/90 × 4 = 60/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Add the two like fractions:
60/360 + 162/360 = 60 + 162/360 = 222/360 - 222/360 simplified gives 37/60
- So, 15/90 + 18/40 = 37/60
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