Add 8/20 and 70/90
8/20 + 70/90 is 53/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
8/20 = 8 × 9/20 × 9 = 72/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
70/90 = 70 × 2/90 × 2 = 140/180 - Add the two like fractions:
72/180 + 140/180 = 72 + 140/180 = 212/180 - 212/180 simplified gives 53/45
- So, 8/20 + 70/90 = 53/45
In mixed form: 18/45
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