Add 15/9 and 90/40
1st number: 1 6/9, 2nd number: 2 10/40
15/9 + 90/40 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
15/9 = 15 × 40/9 × 40 = 600/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
600/360 + 810/360 = 600 + 810/360 = 1410/360 - 1410/360 simplified gives 47/12
- So, 15/9 + 90/40 = 47/12
In mixed form: 311/12
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