Add 84/45 and 70/42
1st number: 1 39/45, 2nd number: 1 28/42
84/45 + 70/42 is 53/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
70/42 = 70 × 15/42 × 15 = 1050/630 - Add the two like fractions:
1176/630 + 1050/630 = 1176 + 1050/630 = 2226/630 - 2226/630 simplified gives 53/15
- So, 84/45 + 70/42 = 53/15
In mixed form: 38/15
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