Add 15/8 and 90/70
1st number: 1 7/8, 2nd number: 1 20/70
15/8 + 90/70 is 177/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
15/8 = 15 × 35/8 × 35 = 525/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
90/70 = 90 × 4/70 × 4 = 360/280 - Add the two like fractions:
525/280 + 360/280 = 525 + 360/280 = 885/280 - 885/280 simplified gives 177/56
- So, 15/8 + 90/70 = 177/56
In mixed form: 39/56
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