Add 72/45 and 63/70
1st number: 1 27/45, 2nd number: 63/70
72/45 + 63/70 is 5/2.
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,
72/45 = 72 × 14/45 × 14 = 1008/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
63/70 = 63 × 9/70 × 9 = 567/630 - Add the two like fractions:
1008/630 + 567/630 = 1008 + 567/630 = 1575/630 - 1575/630 simplified gives 5/2
- So, 72/45 + 63/70 = 5/2
In mixed form: 21/2
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