Add 42/70 and 45/15
1st number: 42/70, 2nd number: 3 0/15
42/70 + 45/15 is 18/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
45/15 = 45 × 14/15 × 14 = 630/210 - Add the two like fractions:
126/210 + 630/210 = 126 + 630/210 = 756/210 - 756/210 simplified gives 18/5
- So, 42/70 + 45/15 = 18/5
In mixed form: 33/5
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