Add 15/10 and 20/72
1st number: 1 5/10, 2nd number: 20/72
15/10 + 20/72 is 16/9.
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,
15/10 = 15 × 36/10 × 36 = 540/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Add the two like fractions:
540/360 + 100/360 = 540 + 100/360 = 640/360 - 640/360 simplified gives 16/9
- So, 15/10 + 20/72 = 16/9
In mixed form: 17/9
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