Add 54/45 and 90/70
1st number: 1 9/45, 2nd number: 1 20/70
54/45 + 90/70 is 87/35.
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,
54/45 = 54 × 14/45 × 14 = 756/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
90/70 = 90 × 9/70 × 9 = 810/630 - Add the two like fractions:
756/630 + 810/630 = 756 + 810/630 = 1566/630 - 1566/630 simplified gives 87/35
- So, 54/45 + 90/70 = 87/35
In mixed form: 217/35
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Related: 54/90+90/70