Add 90/35 and 21/18
1st number: 2 20/35, 2nd number: 1 3/18
90/35 + 21/18 is 157/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
90/35 = 90 × 18/35 × 18 = 1620/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
21/18 = 21 × 35/18 × 35 = 735/630 - Add the two like fractions:
1620/630 + 735/630 = 1620 + 735/630 = 2355/630 - 2355/630 simplified gives 157/42
- So, 90/35 + 21/18 = 157/42
In mixed form: 331/42
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