Add 15/10 and 72/42
1st number: 1 5/10, 2nd number: 1 30/42
15/10 + 72/42 is 45/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
15/10 = 15 × 21/10 × 21 = 315/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Add the two like fractions:
315/210 + 360/210 = 315 + 360/210 = 675/210 - 675/210 simplified gives 45/14
- So, 15/10 + 72/42 = 45/14
In mixed form: 33/14
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