Add 30/18 and 90/35
1st number: 1 12/18, 2nd number: 2 20/35
30/18 + 90/35 is 89/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
30/18 = 30 × 35/18 × 35 = 1050/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
90/35 = 90 × 18/35 × 18 = 1620/630 - Add the two like fractions:
1050/630 + 1620/630 = 1050 + 1620/630 = 2670/630 - 2670/630 simplified gives 89/21
- So, 30/18 + 90/35 = 89/21
In mixed form: 45/21
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