Add 15/40 and 90/30
1st number: 15/40, 2nd number: 3 0/30
15/40 + 90/30 is 27/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
15/40 = 15 × 3/40 × 3 = 45/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
90/30 = 90 × 4/30 × 4 = 360/120 - Add the two like fractions:
45/120 + 360/120 = 45 + 360/120 = 405/120 - 405/120 simplified gives 27/8
- So, 15/40 + 90/30 = 27/8
In mixed form: 33/8
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