Add 63/4 and 90/70
1st number: 15 3/4, 2nd number: 1 20/70
63/4 + 90/70 is 477/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
63/4 = 63 × 35/4 × 35 = 2205/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
90/70 = 90 × 2/70 × 2 = 180/140 - Add the two like fractions:
2205/140 + 180/140 = 2205 + 180/140 = 2385/140 - 2385/140 simplified gives 477/28
- So, 63/4 + 90/70 = 477/28
In mixed form: 171/28
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