Add 42/30 and 28/90
1st number: 1 12/30, 2nd number: 28/90
42/30 + 28/90 is 77/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
42/30 = 42 × 3/30 × 3 = 126/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
28/90 = 28 × 1/90 × 1 = 28/90 - Add the two like fractions:
126/90 + 28/90 = 126 + 28/90 = 154/90 - 154/90 simplified gives 77/45
- So, 42/30 + 28/90 = 77/45
In mixed form: 132/45
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