Add 30/45 and 72/70
1st number: 30/45, 2nd number: 1 2/70
30/45 + 72/70 is 178/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
30/45 = 30 × 14/45 × 14 = 420/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Add the two like fractions:
420/630 + 648/630 = 420 + 648/630 = 1068/630 - 1068/630 simplified gives 178/105
- So, 30/45 + 72/70 = 178/105
In mixed form: 173/105
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