Add 20/70 and 90/36
1st number: 20/70, 2nd number: 2 18/36
20/70 + 90/36 is 39/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
20/70 = 20 × 18/70 × 18 = 360/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
90/36 = 90 × 35/36 × 35 = 3150/1260 - Add the two like fractions:
360/1260 + 3150/1260 = 360 + 3150/1260 = 3510/1260 - 3510/1260 simplified gives 39/14
- So, 20/70 + 90/36 = 39/14
In mixed form: 211/14
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