Add 75/10 and 20/72
1st number: 7 5/10, 2nd number: 20/72
75/10 + 20/72 is 70/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
75/10 = 75 × 36/10 × 36 = 2700/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Add the two like fractions:
2700/360 + 100/360 = 2700 + 100/360 = 2800/360 - 2800/360 simplified gives 70/9
- So, 75/10 + 20/72 = 70/9
In mixed form: 77/9
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