Add 70/72 and 25/20
1st number: 70/72, 2nd number: 1 5/20
70/72 + 25/20 is 20/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
70/72 = 70 × 5/72 × 5 = 350/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
25/20 = 25 × 18/20 × 18 = 450/360 - Add the two like fractions:
350/360 + 450/360 = 350 + 450/360 = 800/360 - 800/360 simplified gives 20/9
- So, 70/72 + 25/20 = 20/9
In mixed form: 22/9
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