Add 20/90 and 72/35
1st number: 20/90, 2nd number: 2 2/35
20/90 + 72/35 is 718/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 35 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
20/90 = 20 × 7/90 × 7 = 140/630 - Likewise, for the 2nd fraction, since 35 × 18 = 630,
72/35 = 72 × 18/35 × 18 = 1296/630 - Add the two like fractions:
140/630 + 1296/630 = 140 + 1296/630 = 1436/630 - 1436/630 simplified gives 718/315
- So, 20/90 + 72/35 = 718/315
In mixed form: 288/315
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