Add 20/90 and 7/5
1st number: 20/90, 2nd number: 1 2/5
20/90 + 7/5 is 73/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 5 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 5 × 18 = 90,
7/5 = 7 × 18/5 × 18 = 126/90 - Add the two like fractions:
20/90 + 126/90 = 20 + 126/90 = 146/90 - 146/90 simplified gives 73/45
- So, 20/90 + 7/5 = 73/45
In mixed form: 128/45
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