Add 15/40 and 30/90
15/40 + 30/90 is 17/24.
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,
15/40 = 15 × 9/40 × 9 = 135/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
30/90 = 30 × 4/90 × 4 = 120/360 - Add the two like fractions:
135/360 + 120/360 = 135 + 120/360 = 255/360 - 255/360 simplified gives 17/24
- So, 15/40 + 30/90 = 17/24
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