Add 72/63 and 45/70
1st number: 1 9/63, 2nd number: 45/70
72/63 + 45/70 is 25/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
72/63 = 72 × 10/63 × 10 = 720/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Add the two like fractions:
720/630 + 405/630 = 720 + 405/630 = 1125/630 - 1125/630 simplified gives 25/14
- So, 72/63 + 45/70 = 25/14
In mixed form: 111/14
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