Add 30/60 and 70/90
30/60 + 70/90 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
30/60 = 30 × 3/60 × 3 = 90/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
70/90 = 70 × 2/90 × 2 = 140/180 - Add the two like fractions:
90/180 + 140/180 = 90 + 140/180 = 230/180 - 230/180 simplified gives 23/18
- So, 30/60 + 70/90 = 23/18
In mixed form: 15/18
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Related: 90/60+70/90