Add 20/8 and 90/20
1st number: 2 4/8, 2nd number: 4 10/20
20/8 + 90/20 is 7/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
20/8 = 20 × 5/8 × 5 = 100/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
90/20 = 90 × 2/20 × 2 = 180/40 - Add the two like fractions:
100/40 + 180/40 = 100 + 180/40 = 280/40 - 280/40 simplified gives 7/1
- So, 20/8 + 90/20 = 7/1
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