Add 72/70 and 80/63
1st number: 1 2/70, 2nd number: 1 17/63
72/70 + 80/63 is 724/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
72/70 = 72 × 9/70 × 9 = 648/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
80/63 = 80 × 10/63 × 10 = 800/630 - Add the two like fractions:
648/630 + 800/630 = 648 + 800/630 = 1448/630 - 1448/630 simplified gives 724/315
- So, 72/70 + 80/63 = 724/315
In mixed form: 294/315
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