Add 20/8 and 70/18
1st number: 2 4/8, 2nd number: 3 16/18
20/8 + 70/18 is 115/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
20/8 = 20 × 9/8 × 9 = 180/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
70/18 = 70 × 4/18 × 4 = 280/72 - Add the two like fractions:
180/72 + 280/72 = 180 + 280/72 = 460/72 - 460/72 simplified gives 115/18
- So, 20/8 + 70/18 = 115/18
In mixed form: 67/18
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