Add 15/40 and 25/36
15/40 + 25/36 is 77/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 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 36 × 10 = 360,
25/36 = 25 × 10/36 × 10 = 250/360 - Add the two like fractions:
135/360 + 250/360 = 135 + 250/360 = 385/360 - 385/360 simplified gives 77/72
- So, 15/40 + 25/36 = 77/72
In mixed form: 15/72
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