Add 30/15 and 90/40
1st number: 2 0/15, 2nd number: 2 10/40
30/15 + 90/40 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
30/15 = 30 × 8/15 × 8 = 240/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
90/40 = 90 × 3/40 × 3 = 270/120 - Add the two like fractions:
240/120 + 270/120 = 240 + 270/120 = 510/120 - 510/120 simplified gives 17/4
- So, 30/15 + 90/40 = 17/4
In mixed form: 41/4
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