Add 15/40 and 8/9
15/40 + 8/9 is 91/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 9 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 9 × 40 = 360,
8/9 = 8 × 40/9 × 40 = 320/360 - Add the two like fractions:
135/360 + 320/360 = 135 + 320/360 = 455/360 - 455/360 simplified gives 91/72
- So, 15/40 + 8/9 = 91/72
In mixed form: 119/72
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