Add 28/70 and 75/45
1st number: 28/70, 2nd number: 1 30/45
28/70 + 75/45 is 31/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
28/70 = 28 × 9/70 × 9 = 252/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
75/45 = 75 × 14/45 × 14 = 1050/630 - Add the two like fractions:
252/630 + 1050/630 = 252 + 1050/630 = 1302/630 - 1302/630 simplified gives 31/15
- So, 28/70 + 75/45 = 31/15
In mixed form: 21/15
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