Add 70/18 and 20/45
1st number: 3 16/18, 2nd number: 20/45
70/18 + 20/45 is 13/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
70/18 = 70 × 5/18 × 5 = 350/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
20/45 = 20 × 2/45 × 2 = 40/90 - Add the two like fractions:
350/90 + 40/90 = 350 + 40/90 = 390/90 - 390/90 simplified gives 13/3
- So, 70/18 + 20/45 = 13/3
In mixed form: 41/3
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