Add 81/18 and 72/35
1st number: 4 9/18, 2nd number: 2 2/35
81/18 + 72/35 is 459/70.
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,
81/18 = 81 × 35/18 × 35 = 2835/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
72/35 = 72 × 18/35 × 18 = 1296/630 - Add the two like fractions:
2835/630 + 1296/630 = 2835 + 1296/630 = 4131/630 - 4131/630 simplified gives 459/70
- So, 81/18 + 72/35 = 459/70
In mixed form: 639/70
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