Add 42/9 and 12/30
1st number: 4 6/9, 2nd number: 12/30
42/9 + 12/30 is 76/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
12/30 = 12 × 3/30 × 3 = 36/90 - Add the two like fractions:
420/90 + 36/90 = 420 + 36/90 = 456/90 - 456/90 simplified gives 76/15
- So, 42/9 + 12/30 = 76/15
In mixed form: 51/15
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