Add 70/20 and 14/45
1st number: 3 10/20, 2nd number: 14/45
70/20 + 14/45 is 343/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
14/45 = 14 × 4/45 × 4 = 56/180 - Add the two like fractions:
630/180 + 56/180 = 630 + 56/180 = 686/180 - 686/180 simplified gives 343/90
- So, 70/20 + 14/45 = 343/90
In mixed form: 373/90
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