Add 45/5 and 72/42
1st number: 9 0/5, 2nd number: 1 30/42
45/5 + 72/42 is 75/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
45/5 = 45 × 42/5 × 42 = 1890/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Add the two like fractions:
1890/210 + 360/210 = 1890 + 360/210 = 2250/210 - 2250/210 simplified gives 75/7
- So, 45/5 + 72/42 = 75/7
In mixed form: 105/7
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