An art teacher makes a batch of purple paint by mixing 3/4 cup red paint and 3/4 cup blue paint. If she mixes 13 batches, how many cups of purple paint will she have?

Answer 1

3/4+3/4=6/4=1 1/2 cups of purple paint.

1 1/2 x 13 = 3/2x13/1=39/2=19 1/2 cups of purple paint.